Pay attention to the suitability of choosing ppe Pay attention to the suitability of choosing ppe .

Pay attention to the suitability of choosing ppe

The efficacy of chili

Solanaceae herb peppers and covariant fruits. Also known as hot pepper, spicy tomato, hot pepper, spicy, chicken mouth pepper. Most parts of China are cultivated. Variety, Dahongpao, Dajin bar, two gold bar, Chaotian pepper, rice pepper, horns hot pepper, seven-star pepper and so on. In summer and autumn, pick immature (colored green) fruit, called green pepper; pick ripe (red-colored) fruit, called red pepper. Wash fresh, red peppers can be dried again. When you need to go to pedicle.

辣椒

Chili pepper is also a very stimulating food, and it is a favorite of many people. In particular, Sichuanese people are famous for their spicy food. Chili is not only its spicy taste that stimulates our appetite, but also helps warming the stomach and cooling the stomach. Has a great effect, has a very good effect on the treatment of indigestion.

[performance] spicy, hot. Can warm stomach, cold dampness, sweating.

[Reference] contains spicy ingredients, mainly capsaicin, dihydro capsaicin; also contains volatile oil, protein, calcium, phosphorus, rich in vitamin C, carotene and capsanthin.

The product has a strong local irritation; oral can increase appetite and promote gastrointestinal digestive function; Capsaicin can stimulate the taste receptors of the human tongue, reflexively cause a temporary increase in blood pressure, usually recover in 10 to 15 minutes.

[use] for the spleen and stomach Deficiency, loss of appetite, abdominal cold feeling, diarrhea, thin water; cold damp stagnation, eat less greasy, tired body, limb soreness; cold cold, cold and cold without sweat.

【Uغير مجاز مي باشدe】 Frying and frying, cooking, serving in the end or raw food.

【Note】 Food should not be spicy, spicy and oily. Should not eat too much, too much food can cause dizziness, dry eyes, mouth, abdomen or anal burning, pain, diarrhea, lip herpes and so on.

Patients with yin deficiency, cough, hemoptysis, vomiting blood, blood in the stool, target disease, sore boils and peptic ulcer should not take it.

[attached party]

Green pepper fried lobster sauce: green pepper 250g, cut into small pieces, put the pot stir fry until soft, set aside; another appropriate amount of cooking oil cooked, under the lobster sauce 250g, stir fry until the incense, and then mixed with chili slightly stir fry evenly to make.

Black bean pods are appetizers and serve on top products. They are fried with green peppers and are moderately salty and spicy. More suitable for the spleen and stomach Deficiency, loss of appetite in patients with food.

Other value


1, pain relief heat

Pepper is warm and can reduce body temperature through sweating and relieve muscle pain, so it has a strong antipyretic and analgesic effect. The United States found that capsaicin can reduce the transmission of painful neurotransmitters, making people feel less painful.

Since ancient times, peppers have been used to relieve pain. Capsaicin stimulates and depletes nerve-transmitting "P" substances, and substance P can transmit pain mesغير مجاز مي باشدes throughout the nervous system. Through the analgesic principle of capsaicin, chili cream has been used to relieve pains such as shingles and trigeminal neuralgia.

Applying capsaicin to the skin expands the microvessels and promotes circulation, leaving the skin red and warm. Existing manufacturers have used this principle to put capsaicin into socks and become “chili socks” for heating in winter.

2, lipid-lowering diet

Capsaicin accelerates lipolysis, and abundant dietary fiber also has a certain lipid-lowering effect.

3, protect the heart

Eating chili regularly can delay the development of atherosclerosis.

4, beneficial to diabetes

Capsaicin plays a mitigating role in certain symptoms of Type I diabetes.

5, lower blood pressure

The latest animal experiments in Britain found that capsaicin can reduce blood pressure, but the exact mechanism is not yet clear.

6, prevent arteriosclerosis

A red pepper contains the amount of beta carotene needed for a day, and beta carotene is a powerful antioxidant that can counteract the oxidation of low-density cholesterol to harmful forms. Once the low-density cholesterol is oxidized, just as the cream does not leave the refrigerator, it becomes a bad substance that blocks the arteries. In other words, β-carotene begins to intervene at the beginning of arteriosclerosis.

7, prevent, resist cancer

Capsaicin can accelerate cancer cell death without harming healthy cells.

From the perspective of epidemiological studies, many people with hot tastes, such as India and Southeast Asia, have fewer cancers than Western countries. Scientists speculate that these spicy foods themselves contain many antioxidant substances, and oxidation and chronic diseases, cancer and aging have a direct connection. Studies at the University of Hawaii have pointed out that carotenoids in vegetables such as peppers and carrots can stimulate genes that transmit information between cells because the system that exchanges information between cells can malfunction when organs are cancerous. This may have a role in cancer prevention. Important function.

8, skin beauty

Pepper can promote hormone secretion and improve skin condition. Many people think that eating spicy food will cause acne. It is actually not a problem with hot peppers. Only the physique that loves pimple itself will only burn the oil after eating chili.

9, can reduce the symptoms of cold discomfort

For thousands of years, spicy foods are often thought to go. Spicy foods can dilute the secreted mucus and help the clams to cough up so as not to obstruct the respiratory tract. Professor Evanchman, a professor at the University of California, even said: "A lot of cold medicines and cough medicines sold in pharmacies are exactly the same as peppers, but I think it's better to eat them because it has no side effects at all."

10, appetite and digestion

Pepper can promote the secretion of digestive juices and increase appetite.


Daily Cleaning  Nitrile Gloves

Daily Cleaning Nitrile Gloves,Hospital Medical Grade Gloves,Medical Grade Nitrile Gloves Blue,Medical Grade Blue Nitrile Gloves

Puyang Linshi Medical Supplies Co., Ltd. , https://www.linshimedical.com


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Automatic Verticle Color Mixer Machine

                            Model NO.: SM

                       

   

                            Layout Type: Verticle

                       

   

                            Mixing Drum Shape: Drum

                       

   

                            Additional Capabilities: Drying

                       

   

                            Operating type: Continuous Operating

                       

   

                            Condition: New

                       

   

                            Power: 2-10000HP

                       

   

                            Capacity: 1000kg/1800L

                       

   

                            Rotating Speed: 460

                       

   

                            Quality: Good

                       

   

                            Trademark: SINCERE

                       

   

                            Transport Package: wooden Box

                       

   

                            Specification: 1700*1300*2800

                       

   

                            Origin: China

                       

   

                            HS Code: 847982009

                       

 

                    1. Material tank and propeller blades are made of Stainless Steel, eliminating rust corrosion and easy to wash
                   
2. The frame is of framework design, solid and durable

3. Propeller is wholly processed after welding, with high concentricity and steedy operation
                       
4. The standing operation allows little space
                       
5. Mixing in a sealed manner, uniform mixing and no leakage definitely
                       
6. Small horse-power, large mixing capacity and fast speed to realize a uniform mixing in 3~5 minutes
                       




Model Capacity (Kg) Power Rotating Speed (R/MIN) Dimensions   
(mm L*W*H)
BM-300 300KG/540L 2HP 1.1KW 460 1300*850*2300
BM-500 500KG/960L 3HP 2.2KW 460 1400*1000*2400
BM-1000 1000KG/1800L 5HP 3.75KW 460 1700*1300*2800
BM-2000 2000KG/3600L 7.5HP 5.5KW 460 2300*1800*3400
BM-3000 3000KG/5400L 7.5HP 5.5KW 460 2500*2100*3800
BM-5000 5000KG/9000L 10HP 7.5KW 460 2900*2400*4700
BM-10000 10000KG/18000L 20HP 18.5KW 460 2700*2700*6500


 

                           

Gray Iron/ Ductile Iron/  Cast Aluminium

Road Sweeping Equipment,Asphalt Distributor Vehicle Co., Ltd. , http://www.maadmachine.com


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Kimura Seung's classic packaging design (25)

Beach Umbrella

PVC Beach Umbrella,Beach Umbrella,Windproof Beach Umbrella

Rain Poncho Co., Ltd. , http://www.zjraincoat.com


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How to store chili

Local people who can eat hot peppers or like to eat hot peppers will have many peppers grown in their homes. However, the consumption of fresh hot peppers is limited after all. How can this food be stored for a long time?

辣椒

1, made chili sauce

Select the red pepper, wash it, and drain it. Prepare garlic, salt, etc., and grind the garlic and pepper together (remember to wear gloves, otherwise you will be very uncomfortable after you finish). Add appropriate amount of salt and stir it.

2, made into dry chili

Select red peppers, string them in a dry and ventilated place and allow them to dry naturally.

3, made of dried chili

This is a method of storing chili in the Jingchu area and it tastes good. First, use a good green pepper, scalded with boiling water, picked up and put salt for about half a day; then, pickled peppers are left to dry in the sun; later installed with vegetable jars. Take it out when eating, and fry it with other ingredients. The bacon marinated in earth pigs is very tasty.

Others GLASS product

Stemless Wine Glass,Whisky Tumbler,Beer Glass

Awalong Ceramics Co., Ltd. , http://www.jnceramic.com


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Global marine oil and gas exploration and development presents new features

In recent years, the global offshore oil and gas exploration has achieved fruitful results. In the Persian Gulf, the Gulf of Mexico, and the North Sea region, offshore oil exploration and development have achieved the most effective results; in the northern Russian waters, the South China Sea and the coast of Indonesia, the Campos Basin in Brazil has also found rich oil and natural gas resources, and some Oil and gas fields have been developed; there have been new discoveries in deep-sea exploration in West Africa, and many large-scale oil fields have also been discovered in the Caspian Sea region. It can be said that the major discoveries in the recent discovery of global oil and gas are mainly located at sea, and the share of offshore oil reserves and production in global oil production is also increasing. Offshore oil exploration has become a hot area for major oil companies in the world to compete.
At present, the scope of marine oil and gas exploration and development has extended from shallow seas and semi- shallow seas to deep seas. With the increasing difficulty in exploration and development, offshore oil and gas exploration and development are increasingly inseparable from the support of advanced science and technology. In recent years, marine exploration has used 3D seismic technology and multidimensional multi-component exploration technologies offshore to promote exploration efficiency. Wellbore technology is also faster than onshore development. It mainly uses long-distance horizontal drilling and horizontal drilling techniques.
Analyze the current international marine oil and gas exploration situation and present the following characteristics. First, the three-dimensional earthquake at sea has the characteristics of low غير مجاز مي باشدt and high speed compared with land. In recent years, major companies do not do two-dimensional earthquakes in the exploration and development of deep-sea oil and gas, and most of them directly do three-dimensional earthquakes. Second, most of the expenses for offshore oil and gas exploration and development are spent on platforms. The construction غير مجاز مي باشدt of offshore oil platforms is very high. The reduction of the construction of platforms is a major issue for the improvement of offshore oil and gas exploration and development. 'Offshore Affairs on the Sea', drilling wells with extended-reach wells, multi-bottom wells, and branch wells has greatly improved the benefits of deep-sea oil and gas exploration and production. Third, due to the high investment and high risk of offshore oil and gas exploration, deep-sea oil and gas exploration is generally based on finding large traps and discovering large oil and gas fields.

   

35mm Solar Frame

Solar Panel Frame is one of the important components in solar module. It is the most import element in assembling for PV solar Modular. 35mm Solar Frame is designed for 30mm height solar module.

35Mm Solar Frame,Solar Plate Frame,A Frame Solar Panels,Solar Power Frames

Jiangyin Theone Industrial Tech Co.,Ltd , https://www.to-solar.com


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Thousand Jiaozi underwear loving activities than love to pass the heart does not stop

Underwear brand entrepreneur Mr. Wu Mingjie, Wu has always advocated corporate social responsibility from the community, we act together! He immediately mobilized all the staff to participate in the organization of the earthquake disaster relief activities together to account for the financial manager's purchase of Yinlu rice pudding and mineral water of nearly 200 pieces and transported to Chennan hardest hit Chenxi Village, Xikou Village and Xibei Village, Disseminated to the hands of the victims, this spirit should learn, but also hope that more entrepreneurs can be like Mr. Wu, helpful.

千娇子

千娇子内衣 爱心活动 爱大于天 让爱心传递不停断

千娇子内衣 爱心活动 爱大于天 让爱心传递不停断

Guangdong Shantou Expressway to Tian Xin and Qian Jiaozi Wu, respectively, in the Chen collection of road sections, went straight to the hardest hit front line, organize the command and supervision of material distribution, Qian Jiao Zi material distribution activities continued until about 8 o'clock that evening, Thousands of children Wu total and all staff continued their hard work, has been afraid to stop drinking saliva, looked at the hands of the victims received the gratitude of materials, showing a warm smile, one thousand Jiao all staff feel worth. A little bit of their own strength to help people in difficulty, is the happiest thing.

Dress

Custom Dress,Dress,Print  Dress,Lady Dress

SHAOXING OSTAR APPAREL CO., LTD. , https://www.ostarappale.com


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500kg Vertical Industrial Plastic Machine Drying Color Mixer

  • Model NO.: XC-ZL500

  •                                                                                                                                                                                                                                            

  • Working: High Speed Mixer

  •                                                                                                                                                                                                                                            

  • Additional Capabilities: Drying

  •                                                                                                                                                                                                                                            

  • Material: Stainless Steel

  •                                                                                                                                                                                                                                            

  • Electric Control Gear: Zhengtaibrand

  •                                                                                                                                                                                                                                            

  • Electric Motor: Yuanli Brand

  •                                                                                                                                                                                                                                            

  • Trademark: XIECHENG

  •                                                                                                                                                                                                                                            

  • Origin: China

  •                                

  • Mixer Type: Static Mixers

  •                                                                                                                                                                                                                                            

  • Application: Powder, Granules

  •                                                                                                                                                                                                                                            

  • Uغير مجاز مي باشدe: Plastic Industry

  •                                                                                                                                                                                                                                            

  • Suitable for: All Kind of Raw Material

  •                                                                                                                                                                                                                                            

  • Warranty Period: 1 Year

  •                                                                                                                                                                                                                                            

  • Type: Industrial Vertical Stirrers

  •                                                                                                                                                                                                                                            

  • Specification: CE

  •                                                                                                                                                                                                                                            

  • HS Code: 8477800000

  •                                                                                                            

 

                                                                    500kg Vertical Industrial Plastic Machine Drying Color Mixer
The XC-ZL series vertical stirrers are able to perform even mixture for large volume of materials in short mixing time by utilizing the paddles rotation to gather the materials from the bottom of dump center to the top, shed the material flow back to the bottom and complete the mixing function in short period of time. Industrial Vertical Stirrers

FEATURE

(1) Helical circular mixture, fast and evenly stirring;
(2) Suitable for all kinds of plastic raw materials and color powder or granules;
(3) Fully stainless steel contacting parts, rust free and easy to clean;
(4) Installed with power control device to ensure safety.

Work principle:
The Vertical stirrers are able to perform even mixture for large volume of material in short mixing time by utilizing the paddles rotation to gather the material from the bottom of dump center to the top, shed the material flow back to the bottom and complete the mixing function in a short period of time.

                                                           

Storage Box

GPS Personal Tracker Co., Ltd. , http://www.szgpstracker.com


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CorelDRAW drawing goldfish feed three-dimensional packaging process (2)

In the mode property box, select the goldfish item in the “spray list file list”, which means “goldfish”. Then paint freely in the work area. At this point, you will see various patterns of goldfish being used as a brush, distributed along the direction of the path. The longer and more routes are drawn, the more goldfish will appear in quantity and types. Picture 05

Since it is a vector drawing, we do not have to care about the size of these goldfish images. Select the two of the goldfish that you think are the most beautiful, and then delete the other art goldfish path. However, in most cases, the goldfish we choose will all belong to the same artistic path as other unwanted goldfish. The two goldfish in Figure 06 belong to the same artistic pen path.

Assuming that we have selected this white goldfish, we must separate it from it. First click on the menu "Arrange - Split Art Pen Group" command to separate the goldfish and bubble patterns from the art brush. However, the separated pattern is still a group object, so we must click on the menu "Arrange - cancel the group" command. At this point, we can separate this white goldfish from the entire pattern. The remaining goldfish and bubble patterns are deleted. After properly scaling the goldfish, move it to the lower left corner of the box, as shown in Figure 07.

In the same way, we will select a goldfish, separate it, and then make an appropriate reduction, then place it in the upper right corner of the box, as shown in Figure 08.

Use Text Tools to pull a text entry field on the box and enter words such as "Gold Fish Feed". Then when the text object is in the selected state, select a font for the text in the text property box. Here, I select “Han Ding Fan Kanting”, font size is 24, and friends who do not have the font can choose other fonts. Font instead.

Right-click on the text object and select the "Convert to curve" command from the pop-up menu. At this point, the text object is converted to an ordinary path object, which can no longer be edited using text tools. Therefore, when using this step of operation, be sure to confirm that the text input and settings have no problem.

(1) (2) (3) (4) (5) (6) (7)

New Bone China Mugs

New Bone China Mugs,Jumbo Ceramic Mug,Ceramic Mug with English Words

Linkand Co., Ltd. , http://www.csceramics.com


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Home service not only clothes but also convey a new concept of life

Feel home are relaxed and comfortable, so the style of home service are generally more relaxed and free. In addition to the benefits of wearing a home service in addition to experiencing a comfortable, more importantly, feel a home taste.

Home service style is generally divided into dresses and pants. S******ts are mostly sundresses, dresses, but also avatar, as well as half sleeve straight s******ts, and now the dresses are more diverse styles. Pants are mostly upper body in various forms of short-sleeved or long-sleeved pullovers, lower body accompanied by shorts, pants, wide-leg pants and other different styles. Easy to wear off, carefully care.

熳洁儿

熳 Jie children "in the design of the home use of fine design, the overall romantic and Qingxin, as lovely as the next girl. Gives a leisurely, stylish and comfortable feel. 熳 Jie children home service not only bring you Is a few pieces of clothes, she passed a new concept and way of life, learn to enjoy simple, comfortable, stylish, home time.

家居服不仅是衣服  更传递一种全新的生活理念

If you are single, then give yourself a little treat it, in their own harbor, wearing a clean clothes comfortable home, night darker, lonely but slowly dissipated.

家居服不仅是衣服  更传递一种全新的生活理念

If you are a workaholic, then give yourself a little bit of free time, rushed back home one day, the United States and the United States washed a hot bath, put on clean clothes, lazy leaning on the sofa, all the tired swept away And light.

家居服不仅是衣服  更传递一种全新的生活理念

If you feel a lot of pressure, then give yourself a little bit of it, the downturn in the market, reputable clients, business risks, housing repayment, the pressure needs to ease the release of a glass of mellow wine, relax tired body and mind, have When we really need to stop and take a break. If you are impatient, give yourself a peace of mind. Anyway, at least we are confident and self-reliant. We have the courage to pursue a better life.

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Discussion on access control system networking and network security technical issues

First, the development and status quo of access control systems

With the acceleration of digital network development, the scope of networked products has been expanding, and access control systems have steadily moved deeper into the direction of TCP/IP networks from the traditional RS485 bus transmission method. The limitations of RS485 communication in terms of number of nodes, transmission distance, and communication speed limit its application, especially the application of large-scale access control systems. The access control system based on TCP/IP network communication has the advantages of no-node limitation, wide coverage area, fast communication speed, and small interference, and is fully ahead of the RS485 bus system, and it will naturally gain the favor of many users.

At present, some access control systems using external or built-in network converters on the market are actually intermediate devices using RS485 to TCP/IP, which is not a true network access control. The access controller used in the true sense of the network access control is generally implemented by a 32-bit ARM7/9 microprocessor.

The access control system adopting the full TCP/IP method can make full use of the established network resources, and the amount of new wiring works is small. It can be used across regions without distance limitation, and information transmission and storage capacity can be greatly improved. However, if the project does not have a network, the special installation of the network will increase the غير مجاز مي باشدt of the initial investment. At present, it is mainly used in large-scale systems with more than 100 doors.

Another aspect of access control system technology development is the integration of access control systems and other intelligent building systems. It is mainly integrated with video surveillance systems, intrusion alarm systems, perimeter detection systems, fire alarm systems, and building automation systems. This combination provides Effective structure to enhance each other's systems complement each other. For example, once there is an event that triggers an alarm, it will send a signal to the video surveillance system to provide real-time recording of the incident scene, and the linked access control system will block the corresponding access control channel.

Second, the access control system networking and network security technology issues 1. Networking and security
At present, there are two networking methods for network access control systems. One is the access control system based on RS485 bus networking. The other is the “IP network access control” of the network access control system. The “IP network access control” refers to the access control system of the access control controller and the access control server using the TCP/IP protocol.

In the past, most of us were concerned about the reliability of access control systems. At present, the security of access control systems has received more and more attention. In particular, the security requirements for access control systems of certain countries' confidential departments and confidential departments are even higher.

Compared with the traditional access control system based on 485 bus network, the advantages of IP network access control are mainly reflected in: (1) greatly improve the system response speed, for more than 100 access control points above the access control system, especially for video linkage requirements occasions, Should be preferred; (2) improve system reliability, RS485 twisted pair bus technology is mature, easy to use, but poor anti-jamming performance; (3) improve system scalability, IP architecture is more suitable for standardization of the system expansion, and off-site It is the best choice for networking users to use. (4) Improve the maintainability of the system. The IP network access control facilitates remote diagnosis and maintenance. Compared with the traditional access control system based on the 485 bus network, the IP network access controller should be higher than the RS485 access controller.

Regarding the network security of the two networking systems, any kind of network communication has the risk of being eavesdropped or modified by a third party. RS485 bus communication technology is simpler than the IP network access control using TCP/IP protocol networking. "Easier to be attacked.

The TCP/IP protocol is the most widely used network communication protocol and has powerful communication capabilities. However, TCP/IP protocol packets are easily monitored and intercepted by dedicated software during the transmission process. The TCP/IP protocol in the network is easily communicated by third parties. Eavesdropping or modification.

The main danger of this kind of threat is that the access authority in the access control system and the administrator's user information and password are easily intercepted. The most terrible danger is the possibility of legal communications being modified, the modified information being used for illegal access, and even blocking the interception of real-time alarm events, etc. will cause incalculable losses to the customer's security.

TCP/IP communication packets are intercepted and executed in many ways. Changing the direction of the mesغير مجاز مي باشدe causes the hosts on the network to change the address of the packets they send during the network session.

A spoiler interested in truncating a conversation may use one method to set up relays. A relay failure can occur anywhere in the network, even at a distance from the client system. The relay machine can adjust traffic in real time or record packets for later analysis. The relay machine can also change the content of the transmitted communication.

The method of obtaining the communication content only requires a passive packet monitor (often referred to as a "packet sampler"). The packet sampler can provide the logged network information to the deliberately destructive system security in a relay-broken manner.

Currently, 99% of the TCP/IP access control systems used in large-scale projects such as subways, banks, unattended equipment rooms, telecommunications power, and national government agencies have no anti-intrusion security mechanisms at the network layer. Since customers do not understand the potential risk of being hacked at any time, once attacked will directly threaten the normal operation of the customer; it will even result in major loss of personnel and property, so solving the security problem of TCP/IP access control system becomes anxious. The problem to be solved.

2. Application of Network Security Technology in Access Control System

At present, in order to ensure the security of data and communication in access control systems, the main network security technologies used are: security cryptography, counterfeit card protection technology, equipment authentication technology, intrusion detection, data transmission encryption technology, data storage, backup, and disaster recovery technology. Wait. The following lists the application of several common network security technologies in ensuring access control systems.

Borrow VPN Network Channel Method

Using this method of Figure 1, the threat of illegal computer attacks outside the VPN tunnel is resolved. The disadvantage is that there is also the possibility of illegal computer attacks from inside the VPN tunnel.

Using the method shown in Figure 2 for each controller with an independent VPN device, the advantage is that each device in the system has an independent security channel, effectively solving the threat of internal and external computer attacks. The disadvantages are very high investment غير مجاز مي باشدts and high maintenance غير مجاز مي باشدts.

High-security encryption technology of the network door vegetable equipment

Such as Siemens company's SIPASS access control system, this type of product communication service uses SSL encryption technology, communication service software and management of customer full and controller communication between all through SSL encryption, decryption, authentication and other strict security detection mechanism To be done.

At present, online banking security encryption uses SSL encryption technology. The comprehensive system security mechanism in this kind of access control system products ensures the security of customers in complex network environments. It is characterized by satisfying customers' high security of the entire system. The requirements are relatively غير مجاز مي باشدt-saving, and can also significantly save on subsequent use and maintenance غير مجاز مي باشدts. This is a very valuable option.

Third, the integration of access control systems and other systems and information sharing

With the rapid development of digital networking and intelligent building technologies, the integration of access control systems with other systems will become even closer, and the scope will become wider and wider, infiltrating into all areas of society and playing an increasingly important role. In addition to access control, attendance, documents, patrolling, dining, consumption, fitness, medical care, parking, book materials, meeting attendance, visitor management, elevator control management, office equipment management, club entertainment, three forms and property payment, etc. Also with other intelligent systems necessary integration and linkage, such as anti-theft alarm, closed-circuit monitoring, fire alarm, and even building automation systems.

In addition, the system will also make data interfaces with systems such as ERP, such as attendance, payroll, and personnel management.

The network access control system has the following features:

Data sharing: Utilize system resources to speed up data exchange.

Real-time monitoring: Real-time monitoring of all terminals in the system.

Quick Search: All records can be retrieved at one time in the same database, improving efficiency and accuracy.

Comprehensive statistics: All statistical reports can be completed in the management center.

Convenient management: Management of all systems can be completed in the management center.

With the development of building intelligent systems, the integrated management of network access control and card systems is already a general trend. The simple “card” can no longer satisfy the actual needs of the society, but requires a seamless link within the card system, and External linkage of other intelligent systems.

There are two main ways to implement the linkage between the access control system and other systems

The first is the hardware method
That is, the access control system outputs the relay dry contact to the matrix alarm input module of the analog television monitoring system and the alarm input of the DVR, so as to realize the image capture and monitoring functions of the controlled door point or related parts. This kind of integration method is the most commonly used and the most basic one in the past. However, the problem is that afterwards, it can't be queried through more efficient means. At the same time, installation and debugging are quite troublesome.

The second is software

The access controller with digital video server (encoder) function supports the dual data exchange function from the device protocol layer to the software database layer simultaneously with the digital monitoring system. Another method is to directly integrate the program of the access control management system software in the SDK of the DVR video capture card, and connect the DVR equipment through the access control system software function item. The above two software methods have their advantages and disadvantages. The advantage of the former is that the system responds quickly and there is no delay. The disadvantage is that the video data must be stored in the local management host, and the capacity of the host hard disk must be high. The latter has the advantage that the local management host does not need to save the video stream data, and only needs to call the data in the remote DVR when needed. The disadvantage is that the associated video will have a delay of about 1-3 seconds and cannot be abnormal at the channel. The previous video was called. In addition, there is also a software approach that is integrated by an intelligent system platform. This software is provided by the equipment provider's OPC standard interface or data development package, and then developed by a professional software vendor, in the third-party software. Show in and out of data and video information, such software also integrates various systems to achieve the purpose of unified management, the drawback is a long development cycle.

Fourth, the development trend of network access control system

In summary, the networked access control refers to the access control system based on TCP/IP communication. The advantages of the access control system adopting the TCP/IP communication protocol are that the communication speed is fast, the network is not limited by the distance, the network resources are easily obtained, and the system can be managed. Because of the large number of devices, access control devices that use this protocol as a networking mode have become mainstream products for large-scale access control system projects and remote management access control system projects. Compared with the traditional access control, it has greatly improved the communication and real-time monitoring, data transmission, networking and other aspects, and improved the shortcomings of the lack of real-time RS485. It has already broken through the early single RS485 bus to access up to 128 The limitation of the station controller is changed from a bus network to a star structure. Any problem at any point will not affect the system. The system failure is also easy to find and eliminate.

Undoubtedly, with the continuous development of intelligence, integration and networking in the security industry, the access control system will embark on a brand new road, complete with security video surveillance systems, anti-theft alarm systems, and fire alarm systems and building automation systems. Taiwan has become a development trend; in addition, information sharing and seamless integration between building and architecture intelligence subsystems will surely be the direction of development of access control systems.

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