With the improvement of living standards, people's monitoring requirements for food production, distribution and storage are becoming higher and higher, especially for temperature and humidity indicators. Relevant departments have even included this content in the assessment indicators. Due to the large number of detection points, the traditional temperature and humidity monitoring equipment and technology have been unable to meet the needs of refinement and diversification, which requires us to develop a multi-point, remote and convenient intelligent monitoring system in combination with modern science and technology. Chengdu Xinxin Electronic Technology Co., Ltd. uses scientific technology and combined with the actual needs of users to launch intelligent wireless temperature and humidity monitoring and linkage systems that are suitable for various warehouse environments, to ensure that the temperature and humidity of the warehouse environment meet need.
System design basis
《JB/T5243-91工业控制计算机系统验收大纲》 ● "JB / T5243-91 Industrial Control Computer System Acceptance Outline"
《GB50198-94计算机系统安全准则》、《GBJ93-86自动化仪表选型规定》 ● "GB50198-94 Computer System Safety Guidelines", "GBJ93-86 Automation Instrument Selection Regulations"
《HG20507-92工业自动化仪表工程施工及验收规范》 ● "HG20507-92 Code for Construction and Acceptance of Industrial Automation Instrumentation Engineering"
《GB 50194-93建设工程施工现场供用电安全规范》 ● "GB 50194-93 Safety Code for Power Supply and Consumption at Construction Sites"
《GB 50054-95低压配电设计规范》、《JJG874-2007温度指示控制仪》 ● "GB 50054-95 Low-voltage Power Distribution Design Specification", "JJG874-2007 Temperature Indication Controller"
Third, the system architecture
After on-site environmental investigation, combined with the functional requirements of the use department, the following system solutions were made specifically for XX company.
Used to collect temperature and humidity data at each monitoring point. Battery powered. Wireless transmission. The transmission distance is unobstructed from 0 to 5000 meters.
(Two) wireless repeaters
It is used to resend the data collected by the temperature and humidity probe to the display terminal.
(Three) liquid crystal display terminal
It is used to receive the data of each temperature and humidity monitoring point and display it locally, and upload the data to the upper computer.
(Four) host computer
Used to run "Intelligent Wireless Temperature and Humidity Monitoring Software " and store historical data.
(V) Information transmitter
When the temperature and humidity data exceeds the limit, send a warning message to the specified mobile phone number.
(6) System software
Comprehensive management of each monitoring point of the system, including data reading display, historical data query, chart curve display, function parameter setting, filtering, exporting and printing.
Fourth, system function
(1) Data collection
Automatic data collection, recording and storage 24 hours a day.
(Two) real-time display
The historical data can be automatically generated into tables, curves and graphics, and the image is intuitive.
(Three) historical storage
Historical data is stored and backed up securely, and can be queried at will according to customer needs and filtering conditions. The data is exported and printed in various forms, and supports multiple formats such as PDF and Excel.
(IV) Overrun alarm
You can set the upper and lower limits of temperature and humidity by yourself. When the temperature and humidity exceed the limit, the display terminal and software interface will automatically prompt an alarm and beep on the LCD screen.
(V) Information Cat
When the alarm signal appears, the system can send alarm instructions according to the preset alarm cell phone and alarm conditions.
Five, system advantages
(I) Data collection
Temperature accuracy can reach ± 0.3 ℃, humidity accuracy ± 2%.
(B) the reliability of wireless transmission
Adopt 852MHz channel communication, wireless transmission has strong encryption function, strong anti-interference, and there are abundant communication channels to choose from.
(3) Convenience of on-site installation
Wall mounting. No wiring is required for the acquisition points.
(IV) Concentration of data display
The sensor data of each detection point is sent to the LCD screen for display, and then transmitted to the computer of the management center for centralized display, which is clear at a glance, and avoids manual inspection and recording at regular intervals.
( 可换 LED 显示屏等 ) (Two) display screen ( interchangeable LED display, etc. )
(Three) system software
A: All sensor temperature and humidity data in the system are displayed in real time and stored in the database.
B: Query the historical data of all collection points in the system and draw a graph
C: Set the upper and lower limits of the LCD display alarm terminal
D: Data export printing function
Seven, after sales and maintenance
The company's products promise a free warranty within 1 year, and only the cost will be charged beyond the warranty period.
(1) Technical support and service
For the products and equipment sold by our company, we guarantee that users can get lifetime technical support and services for the entire system. As an important part of technical support, we will also provide users with system upgrade services and ensure:
1. The advanced nature of the technology and the applicable development trend;
、随时能够为用户提供系统的扩展能力，以满足用户日益发展的要求； 2 , can provide users with system expansion capabilities at any time to meet the growing requirements of users;
、升级后的系统有良好的性能价格比； 3. The upgraded system has a good performance-price ratio;
、经济性。 4. Economical.
(Two) telephone support services
The customer's system administrator or system management and maintenance personnel can directly contact our company at any time, and our engineers provide professional technical support to users by telephone, solve problems in the user's network system at a faster speed, and provide round-the-clock No weekend response service.
(Three) repair and maintenance services
When our engineers can't solve the problem in time by phone, you can choose to send the equipment back to our after-sales point, and our company will solve the problem for you as soon as possible and deal with the problem in time.
(IV) Equipment maintenance services
We provide maintenance and replacement services for system equipment during the free maintenance period, and provide warranty and maintenance services for all equipment specified in subsequent warranty service contracts. Cost charge service for equipment not included in subsequent warranty services.
(V) Staff training
According to the needs of customers, our company will carry out comprehensive technical training for related technical personnel of customers to achieve a comprehensive understanding of the system's functions and related technologies, and can independently perform installation and configuration, daily maintenance, general fault diagnosis and repair, Specific training content includes:
1. System architecture and related technologies;
、系统的安装调试； 2. System installation and commissioning;
、系统管理员和用户培训。 3. System administrator and user training.
Company Name: Chengdu Xinxin Electronic Technology Co., Ltd.
系 人：马谦18080809559（销售） Contact : Ma Qian 18080809559 (sales)
Address: Unit 1, 202, Block 5, Santai Rubik's Cube, No. 42, Shuxi Road, Jinniu District, Chengdu, Sichuan
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