CN205103692U - Workshop monitoring system of mill based on wireless transmission - Google Patents

Abstract

The utility model relates to the technical field of wireless transmission systems, in particular to a factory workshop monitoring system based on wireless transmission. Including temperature sensor, power measuring device, humidity sensor, humidity sensor and temperature sensor respectively adopt infrared sensor, with high sensitivity and fast response, the wireless transmission module adopts Prim algorithm for the management path of each workshop, which is another structure with minimum generation The tree algorithm, the power measurement device adopts DC power meter and 555 timer, the 555 timer has strong performance and wide application range, the relay adopts electromagnetic relay, and uses small current and low voltage to control large current and high voltage, and the wireless transmission module according to the power The data collected by the measuring device controls the output of the power measurement of the monitoring center, the wireless transmission module controls the output of the humidity measurement of the monitoring center according to the data collected by the humidity sensor, and the monitoring center controls the output of the alarm system according to the output of the wireless transmission module, so as to realize the shortest path of wireless transmission , high speed and high efficiency.

Description

Factory workshop monitoring system based on wireless transmission

technical field

The utility model relates to the technical field of wireless transmission systems, in particular to a factory workshop monitoring system based on wireless transmission.

Background technique

At present, the basic characteristics of wireless transmission are: using a network platform to provide users with high-speed, online, and transparent data transmission channels, which can be widely used in data transmission in industries such as electric power, industrial control, transportation, meteorology, finance, environmental protection, and coal mines. , in order to meet the needs of customers in networking, it can realize virtual networking, adopt wireless communication network platform, the transmission distance is not limited, support VPN, IPsec, data encryption and other security functions, support wireless video monitoring and dynamic image transmission, adopt high The high-performance 32-bit embedded processor can process protocols and large amounts of data at high speed, supports TCP/IP, UDP, TELNET, FTP, HTTP and other perfect network protocols, and adopts a complete anti-dropping mechanism to ensure that the data terminal is always online, WDT Watchdog design, keep the system stable, intelligent data terminal, can enter the data transmission state after power on, easy to use, flexible, multiple working mode selection, wide power input, convenient system configuration and maintenance interface, WEB mode or RS -232 mode, support operating system, wireless transmission system adopts DSP, forward error correction coding, software radio, digital modulation, coherent demodulation, Virterbi decoding, balanced soft decision and surface patch integrated design and other technologies to provide high performance , High reliability, high stability radio station, the system provides standard 232 interface can be directly connected with the computer, GPS receiver control board, 25Khz channel interval air data transmission rate is 19200bps, 10-6 bit error sensitivity -111dBm, sending and receiving conversion time in Within 7ms, other indicators also meet the requirements of the Ministry of Information Industry, and can be applied to industrial automation, oil field data collection, unmanned aerial vehicle systems, communication control, railway wireless communication, coal mine safety monitoring systems, tap water pipe network monitoring, hydrological monitoring systems, etc. However, the current wireless transmission has signal distortion and is susceptible to interference. It is a new field of scientific and technological development to make up for this shortcoming by using science and technology to improve wireless transmission and realize intelligent management through wireless transmission.

Contents of the invention

The technical problem to be solved by the utility model is to provide a factory workshop monitoring system based on wireless transmission, including a temperature sensor, a power measurement device, and a humidity sensor. Each workshop is equipped with a temperature sensor and a power measurement device. , Humidity sensor, wireless transceiver quickly transmits the measured data to the monitoring center through the wireless transmission module, the DC power meter in the power measuring device is connected to the regulating circuit composed of 555 timers, and the monitoring center and 555 timers constitute the alarm system Connection, through the monitoring center to control the temperature within a suitable range, the wireless transmission module transmits the measurement data to the monitoring center, comprehensively analyzes the current state and compares it with the standard value, and when it exceeds or falls below the standard value, the alarm system is controlled through the relay pull-in, The power measuring device measures the power consumption of the workshop. The 555 timer circuit can be used to adjust within a certain range. By adjusting the resistance and capacitance of the circuit to change the cycle and duty cycle, the power consumption of the workshop is generally large, and if it is not controlled in time, it will cause In unexpected situations such as circuit burnout and fire, the power measurement device transmits the current workshop electric power usage to the monitoring center through the wireless transmission module. When it is not within the standard range, the alarm system is activated to remind people to maintain the circuit. The humidity sensor is used to measure the humidity of the workshop To prevent unexpected situations, the humidity sensor transmits the measured data to the monitoring center through the wireless transmission module. The monitoring center comprehensively processes the current data value. When it is not within the standard range, the alarm system is activated. The wireless transmission module adopts the Prim algorithm , take the shortest path to collect the data information of each workshop, and monitor the status of each workshop quickly and effectively. Since the factory generally has hundreds of workshops, the power consumption is large, there are many operators, and the temperature, humidity, and power consumption are in the The safety of the workshop has an important impact. The circuit composed of sensors and wireless transmission modules can monitor the real-time status of the workshop in a timely and effective manner, and realize the intelligent management of the factory workshop.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: comprising a temperature sensor, a power measuring device, and a humidity sensor; the output end of the temperature sensor is connected with a wireless transmission module; the output end of the power measuring device is connected with a wireless transmission module; The output end of the humidity sensor is connected to the wireless transmission module; the output end of the wireless transmission module is connected to the monitoring center; the monitoring center is connected to the alarm system; the monitoring center obtains the data collected by the temperature sensor through the wireless transmission module; the monitoring center obtains the power through the wireless transmission module The data output by the measuring device; the monitoring center obtains the data collected by the humidity sensor through the wireless transmission module; the monitoring center controls the alarm system according to the output of the wireless transmission module.

The temperature sensor is equipped with a battery, CPU, wireless transceiver, memory, and sensor hardware; the battery is connected to the CPU; the CPU is respectively connected to the wireless transceiver, memory, and sensor hardware; the CPU controls the signal transmission and reception of the wireless transceiver through battery charging; The CPU controls the input and output of the memory through battery charging; the CPU obtains the data information collected by the sensor hardware through battery charging.

The power measuring device is provided with a DC power meter and a 555 timer; the output end of the DC power meter is connected to the input end of the 555 timer; the output end of the 555 timer is connected to the input end of the DC power meter; by adjusting the 555 timer The resistor and capacitor control the input and output of the DC power meter.

The alarm system includes a 555 timer, a relay, and a loudspeaker; the output of the 555 timer is connected to the input of the relay; the output of the relay is connected to the loudspeaker; the 555 timer controls the state of the relay through the input of the monitoring center; the relay The state of the loudspeaker is controlled by a 555 timer.

To further optimize this technical solution, the humidity sensor adopts an infrared sensor.

To further optimize this technical solution, the temperature sensor adopts an infrared sensor.

To further optimize this technical solution, the wireless transmission module adopts Prim's algorithm for the management path of each workshop.

To further optimize this technical solution, the relays described are electromagnetic relays.

To further optimize this technical solution, the connection between the sensor hardware and the CPU adopts a serial port input and output mode.

Compared with the prior art, the utility model has the following advantages: 1. The humidity sensor and the temperature sensor respectively adopt infrared sensors, which have high sensitivity, fast response, reflection, refraction, scattering, interference, absorption and other properties, and can comprehensively measure in all directions The current state of the workshop; 2. The wireless transmission module adopts Prim's algorithm for the management path of each workshop, which is another algorithm for constructing the minimum spanning tree. It constructs the minimum spanning tree by connecting vertices one by one, so that the workshop The traversal path between them is the shortest path, which can quickly, timely and effectively monitor the latest developments in the workshop; 3. The power measurement device adopts a DC power meter and a 555 timer. The DC power meter measures DC current and DC voltage with high measurement accuracy. Five-digit digital display of DC power value, suitable for all kinds of power control, with RS-485 communication port, MODBUS RTU protocol can be selected, the lower four digital tubes display voltage and current measurement values, can switch display, connected with adjustable circuit, circuit Simple connection, easy operation and maintenance, 555 timer has strong performance, low price, and wide application range; 4. The relay adopts electromagnetic relay, which controls large current and high voltage with small current and low voltage, and realizes an automatic control switch ;5. The connection between the sensor hardware and the CPU adopts the serial port input and output mode. The circuit connection is simple, and the data information is input and output by bit, which is suitable for short-distance transmission. It does not need the support of the operating system and can be directly realized by the hardware circuit. It is very low, so it is easy to implement. The connection between the monitoring system and the monitored equipment adopts the "end-to-end" method. The equipment is connected in a single way, and there is no mutual interference. When there is a problem, it is easy to troubleshoot and ensure the integrity and accuracy of the data. Simple hardware implementation.

Description of drawings

Figure 1 is a functional block diagram of a factory floor monitoring system based on wireless transmission.

Fig. 2 is a process diagram of constructing a minimum spanning tree based on the Prim algorithm of the factory workshop monitoring system based on wireless transmission.

Figure 3 is a sensor structure diagram of the factory workshop monitoring system based on wireless transmission.

Fig. 4 is a circuit diagram of a power measurement device of a factory workshop monitoring system based on wireless transmission.

Figure 5 is a circuit diagram of the alarm system of the factory workshop monitoring system based on wireless transmission.

In the figure: 1. Temperature sensor; 2. Power measuring device; 3. Humidity sensor; 4. Wireless transmission module; 5. Monitoring center; 6. Alarm system; 7. 555 timer; 8. Relay; 9. Battery; 10 , CPU; 11, wireless transceiver; 12, memory; 13, sensor hardware; 14, DC power meter; 15, loudspeaker.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

Specific embodiment one: as shown in Fig. 1-5, comprise temperature sensor 1, power measuring device 2, humidity sensor 3; The output end of temperature sensor 1 is connected with wireless transmission module 4; The output end of power measuring device 2 is connected with wireless Transmission module 4; the output end of humidity sensor 3 is connected with wireless transmission module 4; the output end of wireless transmission module 4 is connected with monitoring center 5; monitoring center 5 is connected with alarm system 6; monitoring center 5 obtains temperature sensor through wireless transmission module 4 The data collected by 1; the monitoring center 5 obtains the data output by the power measuring device 2 through the wireless transmission module 4; the monitoring center 5 obtains the data collected by the humidity sensor 3 through the wireless transmission module 4; the monitoring center 5 controls the alarm according to the output of the wireless transmission module 4 system6.

Temperature sensor 1 is provided with battery 9, CPU10, wireless transceiver 11, memory 12, sensor hardware 13; Battery 9 is connected with CPU10; CPU10 is connected with wireless transceiver 11, memory 12, sensor hardware 13 respectively; CPU10 is charged by battery 9 Control the signal transmission and reception of the wireless transceiver 11; the CPU 10 controls the input and output of the memory 12 by charging the battery 9; the CPU 10 obtains the data information collected by the sensor hardware 13 by charging the battery 9.

The power measuring device 2 is provided with a DC power meter 14 and a 555 timer 7; the output end of the DC power meter 14 is connected with the input end of the 555 timer 7; the output end of the 555 timer 7 is connected with the input end of the DC power meter 14 ; Control the input and output of the DC power meter 14 by adjusting the resistance and capacitance of the 555 timer 7.

Alarm system 6 comprises 555 timer 7, relay 8, loudspeaker 15; The output end of 555 timer 7 is connected with the input end of relay 8; The output end of relay 8 is connected with loudspeaker 15; 555 timer 7 passes monitoring The input of the center 5 controls the state of the relay 8; the relay 8 controls the state of the loudspeaker 15 through the 555 timer 7.

The humidity sensor 3 adopts an infrared sensor; the temperature sensor 1 adopts an infrared sensor; the wireless transmission module 4 adopts the Prim algorithm for the management path of each workshop; the relay 8 adopts an electromagnetic relay; the connection between the sensor hardware 13 and the CPU 10 adopts a serial port Input and output mode.

Working principle: The temperature sensor 1 is used to measure the temperature of the current state of the workshop, the power measuring device 2 is used to measure the electricity consumption of the current state of the workshop, and the humidity sensor 3 is used to measure the air humidity of the current state of the workshop. These three factors are important for the safety of the workshop. The wireless transceiver 11 sends the currently measured data information to the monitoring center 5 through the wireless transmission module 4, and the monitoring center 5 is connected with an alarm system 6 for real-time monitoring and management of the status of the workshop. The DC power meter 14 is connected with an adjustable circuit, as shown in Figure 4, the period and duty cycle of the circuit can be changed by adjusting the capacitors C1, C2 and resistor R1, the connection circuit of the 555 timer 7 is simple, easy to operate and maintain, The relay 8 is a switch that is automatically pulled in and opened, and the alarm of the loudspeaker 15 is controlled by the pulling of the relay 8. The sensor is composed of a battery 9, a CPU 10, a wireless transceiver 11, a memory 12, and sensor hardware 13. 9. Charging controls the signal transmission and reception of the wireless transceiver 11. The CPU 10 controls the input and output of the memory 12 through the charging of the battery 9. The CPU 10 obtains the data information collected by the sensor hardware 13 through the charging of the battery 9. The connection between the sensor hardware 13 and the CPU 10 adopts serial Port input and output mode, the circuit connection is simple, the data information is input and output by bit, suitable for short-distance transmission, does not need the support of the operating system, can be directly realized by the hardware circuit, the hardware cost is very low, and the integrity and correctness of the data are guaranteed. The hardware implementation is simple. The wireless transceiver 11 can send out the collected signals and receive the corresponding signals. The wireless transmission module 4 uses the Prim algorithm for the management path of each workshop. As shown in Figure 2, the connection distances between the workshops are not the same , use the shortest path to traverse all the workshops, apply the Prim algorithm to construct the minimum spanning tree, the tree formed by the edge subset searched by this algorithm not only includes all the vertices in the connected graph, but also the sum of the weights of all the edges Taking workshop 1 as the starting point, select workshop 3 with the shortest distance to workshop 1, starting from workshop 1 and workshop 3, selecting workshop 2 with the shortest distance, taking workshop 1, workshop 3 and workshop 2 as the From the starting point, select workshop 5 with the shortest distance. In the end, only workshop 4 has not arrived, and find the shortest path of workshop 4, that is, workshop 5 connects to workshop 4, and gradually construct a minimum spanning tree to traverse all nodes to achieve the shortest wireless transmission path, fast and efficient High, the circuit composed of sensors and wireless transmission module 4 can effectively monitor the real-time status of the workshop in a timely and effective manner, and detect abnormal situations through the alarm system 6 and deal with them in time to realize the intelligent management of the factory workshop.

It should be understood that the above specific implementations of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims, or equivalents of such scope and boundaries.

Claims (9)

1. The factory floor monitoring system based on wireless transmission is characterized in that: it comprises a temperature sensor (1), a power measuring device (2), and a humidity sensor (3); the output end of the temperature sensor (1) is connected with a wireless transmission module (4 ); the output end of the power measuring device (2) is connected with a wireless transmission module (4); the output end of the humidity sensor (3) is connected with a wireless transmission module (4); the output end of the wireless transmission module (4) is connected with a monitoring center (5); the monitoring center (5) is connected with an alarm system (6); the monitoring center (5) obtains the data collected by the temperature sensor (1) through the wireless transmission module (4); the monitoring center (5) passes the wireless transmission module (4) ) to obtain the data output by the power measuring device (2); the monitoring center (5) obtains the data collected by the humidity sensor (3) through the wireless transmission module (4); the monitoring center (5) controls the alarm according to the output of the wireless transmission module (4) system (6). 2. The factory workshop monitoring system based on wireless transmission according to claim 1, characterized in that: battery (9), CPU (10), wireless transceiver (11), memory (12) are arranged in the temperature sensor (1) ), sensor hardware (13); battery (9) is connected with CPU (10); CPU (10) is connected with wireless transceiver (11), memory (12), sensor hardware (13) respectively; CPU (10) passes battery (9) charging and controlling the signal transmission and reception of the wireless transceiver (11); the CPU (10) controls the input and output of the memory (12) by charging the battery (9); the CPU (10) acquires the sensor hardware by charging the battery (9) (13) Collected data information. 3. The factory floor monitoring system based on wireless transmission according to claim 1, characterized in that: DC power meter (14), 555 timer (7) are provided in the power measuring device (2); DC power meter (14 ) output terminal is connected with the input terminal of 555 timer (7); the output terminal of 555 timer (7) is connected with the input terminal of DC power meter (14); by regulating the resistance capacitance of 555 timer (7) control DC Input and output of power meter (14). 4. The factory floor monitoring system based on wireless transmission according to claim 1, characterized in that: alarm system (6) includes 555 timer (7), relay (8), loudspeaker (15); 555 timer The output end of (7) is connected with the input end of relay (8); The output end of relay (8) is connected with loudspeaker (15); 555 timers (7) pass through the input control relay (8) of monitoring center (5) ) state; relay (8) controls the state of loudspeaker (15) by 555 timer (7). 5. The factory floor monitoring system based on wireless transmission according to claim 1, characterized in that: the humidity sensor (3) is an infrared sensor. 6. The factory floor monitoring system based on wireless transmission according to claim 1, characterized in that: the temperature sensor (1) is an infrared sensor. 7. The factory workshop monitoring system based on wireless transmission according to claim 1, characterized in that: the wireless transmission module (4) adopts Prim's algorithm for the management path of each workshop. 8. The factory workshop monitoring system based on wireless transmission according to claim 1, characterized in that: the relay (8) is an electromagnetic relay. 9. The factory workshop monitoring system based on wireless transmission according to claim 1, characterized in that: the connection between the sensor hardware (13) and the CPU (10) adopts a serial port input and output mode.