CN105259951A - Intelligent temperature controller and intelligent temperature controller system applied to power distribution cabinet temperature monitoring - Google Patents
Intelligent temperature controller and intelligent temperature controller system applied to power distribution cabinet temperature monitoring Download PDFInfo
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- CN105259951A CN105259951A CN201510775582.5A CN201510775582A CN105259951A CN 105259951 A CN105259951 A CN 105259951A CN 201510775582 A CN201510775582 A CN 201510775582A CN 105259951 A CN105259951 A CN 105259951A
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Abstract
The invention relates to an intelligent temperature controller applied to power distribution cabinet temperature monitoring. The intelligent temperature controller comprises a first master control chip which performs bidirectional communication with a first carrier wave communication module and a metering module used for metering consumption of a heater and an exhaust fan. An output end of the first master control chip is connected with an input end of a relay, and an output end of the relay is connected with control ends of first and second alternating current contactors. One end of the first alternating current contactor is connected with the metering module, and the other end of the first alternating current contactor is connected with the heater. One end of the second alternating current contactor is connected with the metering module, and the other end of the second alternating current contactor is connected with the exhaust fan. The invention can overcome defects that the temperature control range of a temperature controller is required to be manually set and cannot be remotely controlled and adjusted; the metering function is achieved, that whether the threshold of temperature control is reasonable or not can be determined, and remote control is achieved; in addition, the intelligent temperature controller and an intelligent temperature controller system adopt power line carrier communication based on a high speed narrowband protocol, thereby being stable and fast in communication and convenient in networking.
Description
Technical field
The present invention relates to intelligent temperature controller device technique field, especially a kind of intelligent temperature controller for power distribution cabinet monitoring temperature and system thereof.
Background technology
As everyone knows, the humidity of air is higher, and the steam that can comprise in air is more, and saturated humidity is larger.If keep air humidity constant and reduce air themperature, after temperature is low to moderate certain value, the steam in air will reach capacity.If air themperature reduces further, so steam will from air condensation, formed dew drip.In power distribution cabinet, along with the rising of environment temperature, due to the existence of thermal inertia, the temperature on electrical equipment surface can lower than environment temperature, when damp and hot surrounding air runs into the equipment surface lower than condensation point, steam will condense in equipment surface and form dew droplet, and this situation can reduce the insulating protection grade of electrical equipment, cause electric equipment operation potential safety hazard, even can cause serious liability accident.
Generally for and prevent condensation in power distribution cabinet or the too low phenomenon of temperature from occurring, can Resistant heating be adopted, air themperature is improved, namely improve the saturated humidity of air, can effectively accomplish in humid region anti-condensation; In cold plateau area, also can ensure that the mechanical property of electrical equipment and insulation characterisitic can not reduce.Temperature controller, at power equipment, is applied widely in the switch cubicle of especially primary equipment.Current temperature controller generally can only carry out simple temperature control in height two threshold ranges.When temperature is too high, starts axial flow blower and lower the temperature, start well heater when the temperature is too low and heat.Visible, conventional temperature control device function singleness, needs manually to arrange temperature-control range and cannot carry out Long-distance Control adjustment.
Summary of the invention
Primary and foremost purpose of the present invention is to provide one to possess function of measuring, can judge that whether rationally and carry out the intelligent temperature controller for power distribution cabinet monitoring temperature of Long-distance Control temperature controlled threshold value.
For achieving the above object, present invention employs following technical scheme: a kind of intelligent temperature controller for power distribution cabinet monitoring temperature, comprise the first main control chip, first main control chip respectively with first carrier communication module, for the metering module both-way communication measured the power consumption of well heater and exhaust blower, the output terminal of the first main control chip is connected with the input end of relay, the output terminal of relay respectively with the first A.C. contactor, the control end of the second A.C. contactor is connected, one end of first A.C. contactor is connected with metering module, the other end is connected with well heater, one end of second A.C. contactor is connected with metering module, and the other end is connected with exhaust blower, described first carrier communication module have employed the subchannel communication protocol of high-speed narrow-band, and first carrier communication module is used for setting up a carrier communication network, and this communication network holds at most 255 carrier communication child nodes, forms a mesh network.
Described first main control chip adopts STM32F103VE chip, and its ADC port is connected with the output terminal of linear optical coupling, the input end of linear optical coupling with for receive Temperature Humidity Sensor detect the DC quantity testing circuit of data output terminal be connected; For gathering the first A.C. contactor, the output terminal of photoelectric isolating circuit of On-off signal signal of the second A.C. contactor is connected with the input end of level shifting circuit, and the output terminal of level shifting circuit is connected with the input end of the first main control chip; Described first main control chip respectively with the first ethernet communication module, first serial communication module both-way communication.
Described metering module is by resistor voltage divider circuit, voltage transformer (VT), current transformer, Signal-regulated kinase and single-phase measurement chip composition, the L phase of the input end order phase 220V power supply of described resistor voltage divider circuit, the output terminal of the input end difference connecting resistance bleeder circuit of described voltage transformer (VT), the N phase of single-phase 220V power supply, the L phase of the input end difference order phase 220V power supply of described current transformer, the N phase of single-phase 220V power supply, voltage transformer (VT), the output terminal of current transformer is all connected with the input end of Signal-regulated kinase, the output terminal of Signal-regulated kinase is connected with the input end of single-phase measurement chip.
Another object of the present invention is to provide a kind of intelligent temperature controller system for power distribution cabinet monitoring temperature, comprise system main website, host node and multiple child node, by ethernet communication between described system main website and host node, carrier communication between host node and child node.
Described host node is made up of the second main control chip, the second ethernet communication module, second serial communication module and the second carrier communication module, described second main control chip respectively with the second ethernet communication module, second serial communication module and the second carrier communication module both-way communication, second main control chip is by the second ethernet communication module and system main website both-way communication, and the second main control chip is by the second carrier communication module and child node both-way communication; Second carrier communication module searches route automatically, carries out communication by optimal path and the second main control chip.
The number of described child node is 1 ~ 255.
Described second main control chip adopts STM32F103VE chip.
As shown from the above technical solution, the present invention can overcome current temperature controller need manually to arrange temperature-control range and cannot Long-distance Control adjustment drawback, also possesses function of measuring, can judge that temperature controlled threshold value is whether reasonable and carry out Long-distance Control, in addition intelligent temperature controller and system thereof have employed the power line carrier communication based on high-speed narrow-band agreement, communication fast and stable and networking is convenient.The situation effectively solving condensation or temperature anomaly in switchgear building switch cubicle occurs by application of the present invention, ensures mechanical property and the insulation characterisitic of electrical equipment, eliminates the potential safety hazard of electric equipment operation, avoid serious liability accident.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention;
Fig. 2,3,4 is respectively the structured flowchart of child nodes of the present invention, host node and metering module.
Embodiment
As shown in Figure 1, 2, a kind of intelligent temperature controller for power distribution cabinet monitoring temperature, comprise the first main control chip, first main control chip respectively with first carrier communication module, metering module 4 both-way communication for measuring the power consumption of well heater and exhaust blower, the output terminal of the first main control chip is connected with the input end of relay, the output terminal of relay is connected with the control end of the first A.C. contactor 5, second A.C. contactor 6 respectively, one end of first A.C. contactor 5 is connected with metering module 4, and the other end is connected with well heater; One end of second A.C. contactor 6 is connected with metering module 4, and the other end is connected with exhaust blower.First main control chip is by the A.C. contactor of Control outside, thus the work of control heater or exhaust blower, the first main control chip is also connected with metering module 4, calculates the electric energy that well heater and exhaust blower consume; Described first carrier communication module have employed the subchannel communication protocol of high-speed narrow-band, and first carrier communication module is used for setting up a carrier communication network, and this communication network holds at most 255 carrier communication child nodes, forms a mesh network.
As shown in Figure 1, 2, described first main control chip adopts STM32F103VE chip, and its ADC port is connected with the output terminal of linear optical coupling, the input end of linear optical coupling with for receive Temperature Humidity Sensor detect the DC quantity testing circuit of data output terminal be connected; The output terminal of photoelectric isolating circuit for the On-off signal signal gathering the first A.C. contactor 5, second A.C. contactor 6 is connected with the input end of level shifting circuit, and the output terminal of level shifting circuit is connected with the input end of the first main control chip; Described first main control chip respectively with the first ethernet communication module, first serial communication module both-way communication.
As shown in Figure 4, described metering module 4 is by resistor voltage divider circuit, voltage transformer (VT), current transformer, Signal-regulated kinase and single-phase measurement chip composition, the L phase of the input end order phase 220V power supply of described resistor voltage divider circuit, the output terminal of the input end difference connecting resistance bleeder circuit of described voltage transformer (VT), the N phase of single-phase 220V power supply, the L phase of the input end difference order phase 220V power supply of described current transformer, the N phase of single-phase 220V power supply, voltage transformer (VT), the output terminal of current transformer is all connected with the input end of Signal-regulated kinase, the output terminal of Signal-regulated kinase is connected with the input end of single-phase measurement chip, the output terminal of single-phase measurement chip is connected with the input end of the first main control chip.
As shown in Figure 1, for the intelligent temperature controller system of power distribution cabinet monitoring temperature, comprise system main website 3, host node 1, multiple temperature controllers as child node 2, by ethernet communication between described system main website 3 and host node 1, carrier communication between host node 1 and temperature controller.As shown in Figure 3, described host node 1 is made up of the second main control chip, the second ethernet communication module, second serial communication module and the second carrier communication module, described second main control chip respectively with the second ethernet communication module, second serial communication module and the second carrier communication module both-way communication, second main control chip is by the second ethernet communication module and system main website 3 both-way communication, and the second main control chip is by the second carrier communication module and child node 2 both-way communication.Described second main control chip adopts STM32F103VE chip; The number of described child node is 1 ~ 255; Second carrier communication module searches route automatically, carries out communication by optimal path and the second main control chip.
Below in conjunction with Fig. 1,2,3,4 the present invention is further illustrated.
System main website 3 receives the information of humiture in weather forecast and variation tendency thereof by web Service interface, the temperature controlled strategy of real-time adjustment, utilize Ethernet to communicate with host node 1, then by power-line carrier channel, temperature control strategy is issued to all child nodes 2, when air themperature is higher, temperature control upper threshold can suitably improve, otherwise reduce bottom threshold time temperature is low, accordingly the implementation result of control strategy is carried out anti-school, calculate the power consumption situation of temperature controller and well heater or exhaust blower, whether effect and the income of analyzing temperature controller input be reasonable, judge whether temperature controlled threshold value is arranged too high or too low, if need adjustment, just Long-distance Control can be carried out by system main website 3, if in addition temperature controller with well heater or exhaust blower load drop into too frequent, the scope of temperature control threshold value will expand automatically.
What first and second main control chip described adopted is all STM32F103VE chips, there are multichannel input and output and control the inner ADC of pin and high precision, complete DC quantity measuring ability, the processing capacity of electric current and voltage metering data, the processing capacity of On-off signal, the controlling functions of output switch parameter, ethernet communication function, carrier communication function and serial communication function;
Described DC quantity testing circuit can detect 0 ~ 20mA DC quantity, and the DC quantity that Temperature Humidity Sensor exports is connected to DC quantity testing circuit, is connected with the inside ADC of the first main control chip by linear optical coupling;
Described electric current and voltage metering data processing function is transmitted the electric current and voltage data that metering module 4 collects by the spi bus of the first main control chip, and by the first main control chip, electric current and voltage data are calculated, obtain the data such as power or electric flux;
The processing capacity of described On-off signal can detect digital quantity signal, and signal is connected with level shifting circuit by photoelectric isolating circuit, is connected to the first main control chip;
The controlling functions of described output switch parameter refers to that the GPIO of the first main control chip controls pin and is connected with relay, and the output terminal of relay is connected with first and second A.C. contactor, the input of control load and well heater and exhaust blower and cutting out;
Described ethernet communication function refers to that the second main control chip is connected with the second ethernet communication module, by network interface connected system main website 3, carries out the transmission of data and issuing of control command;
Described carrier communication function refers to that the USART mouth of the first main control chip is connected with first carrier communication module, is communicated with other nodes by power line carrier mode; Host node 1 also has carrier communication function;
Described serial communication function refers to that the SCI of the first main control chip is connected with first serial communication module, connects other industrial field devices by serial ports; Host node 1 also has serial communication function;
Described system main website 3 receives the information of humiture in weather forecast and variation tendency thereof by web Service interface, the temperature controlled strategy of real-time adjustment, Ethernet is utilized to communicate with host node 1, by power-line carrier channel, temperature control strategy is issued to all child nodes 2 again, when air themperature is higher, temperature control upper threshold can suitably improve, otherwise reduce bottom threshold time temperature is low, accordingly the implementation result of control strategy is carried out anti-school, calculate the power consumption situation of temperature controller and well heater or ventilation fan device, whether effect and the income of analyzing temperature controller input be reasonable, judge whether temperature controlled threshold value is arranged too high or too low, if need adjustment, just Long-distance Control can be carried out, if in addition temperature controller with well heater or exhaust fan load drop into too frequent, the scope of temperature control threshold value will expand automatically.
Host node 1 is responsible for foundation and the maintenance of carrier network, and is connected with system main website 3 by RJ45 network interface, the data of carrying out child node 2 is sent and the issuing of control strategy of system main website 3.Child node 2 is responsible for being regulated and controled monitoring point temperature by well heater and exhaust blower, can also measure the power consumption of well heater and exhaust blower simultaneously.Communicated by the power line carrier mode based on narrow-band high-speed ZAP between child node 2 with host node 1.
Carrier signal is coupled on L and N phase line of electric force by the first carrier communication module in child node 2, and have employed the carrier protocol of high-speed narrow-band, second carrier communication module of host node 1 is used for setting up a carrier communication network, this communication network can hold totally 255 carrier communication child nodes 2, form the communication network of a mesh form, networking capability is superior, the first carrier communication module of child node 2 can search route automatically, communication is carried out by optimal path and host node 1, a temperature controller child node 2 can be arranged in each switch gap of switchgear building, the spaced temperature control data of institute can by power line carrier being delivered to system main website 3, the control strategy of system main website 3 also can be issued to all temperature controller child nodes 2 by power line carrier, realize two-way real-time data acquisition and adjustment control.
In sum, the present invention can overcome current temperature controller need manually to arrange temperature-control range and cannot Long-distance Control adjustment drawback, also possesses function of measuring, can judge that temperature controlled threshold value is whether reasonable and carry out Long-distance Control, in addition intelligent temperature controller and system thereof have employed the power line carrier communication based on high-speed narrow-band agreement, communication fast and stable and networking is convenient.
Claims (7)
1. the intelligent temperature controller for power distribution cabinet monitoring temperature, it is characterized in that: comprise the first main control chip, first main control chip respectively with first carrier communication module, metering module (4) both-way communication for measuring the power consumption of well heater and exhaust blower, the output terminal of the first main control chip is connected with the input end of relay, the output terminal of relay is connected with the control end of the first A.C. contactor (5), the second A.C. contactor (6) respectively, one end of first A.C. contactor (5) is connected with metering module (4), and the other end is connected with well heater; One end of second A.C. contactor (6) is connected with metering module (4), and the other end is connected with exhaust blower; Described first carrier communication module have employed the subchannel communication protocol of high-speed narrow-band, and first carrier communication module is used for setting up a carrier communication network, and this communication network holds at most 255 carrier communication child nodes, forms a mesh network.
2. the intelligent temperature controller for power distribution cabinet monitoring temperature according to claim 1, it is characterized in that: described first main control chip adopts STM32F103VE chip, its ADC port is connected with the output terminal of linear optical coupling, the input end of linear optical coupling with for receive Temperature Humidity Sensor detect the DC quantity testing circuit of data output terminal be connected; For gathering the first A.C. contactor (5), the output terminal of photoelectric isolating circuit of On-off signal signal of the second A.C. contactor (6) is connected with the input end of level shifting circuit, and the output terminal of level shifting circuit is connected with the input end of the first main control chip; Described first main control chip respectively with the first ethernet communication module, first serial communication module both-way communication.
3. the intelligent temperature controller for power distribution cabinet monitoring temperature according to claim 1, it is characterized in that: described metering module (4) is by resistor voltage divider circuit, voltage transformer (VT), current transformer, Signal-regulated kinase and single-phase measurement chip composition, the L phase of the input end order phase 220V power supply of described resistor voltage divider circuit, the output terminal of the input end difference connecting resistance bleeder circuit of described voltage transformer (VT), the N phase of single-phase 220V power supply, the L phase of the input end difference order phase 220V power supply of described current transformer, the N phase of single-phase 220V power supply, voltage transformer (VT), the output terminal of current transformer is all connected with the input end of Signal-regulated kinase, the output terminal of Signal-regulated kinase is connected with the input end of single-phase measurement chip.
4. the intelligent temperature controller system for power distribution cabinet monitoring temperature, it is characterized in that: comprise system main website (3), host node (1) and multiple child node (2), by ethernet communication between described system main website (3) and host node (1), carrier communication between host node (1) and child node (2).
5. the intelligent temperature controller system for power distribution cabinet monitoring temperature according to claim 4, it is characterized in that: described host node (1) is by the second main control chip, second ethernet communication module, second serial communication module and the second carrier communication module composition, described second main control chip respectively with the second ethernet communication module, second serial communication module and the second carrier communication module both-way communication, second main control chip is by the second ethernet communication module and system main website (3) both-way communication, second main control chip is by the second carrier communication module and child node (2) both-way communication, second carrier communication module searches route automatically, carries out communication by optimal path and the second main control chip.
6. the intelligent temperature controller system for power distribution cabinet monitoring temperature according to claim 4, is characterized in that: the number of described child node (2) is 1 ~ 255.
7. the intelligent temperature controller system for power distribution cabinet monitoring temperature according to claim 5, is characterized in that: described second main control chip adopts STM32F103VE chip.
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| CN105955368A (en) * | 2016-06-15 | 2016-09-21 | 常州工学院 | Remote monitoring system for distribution device |
| CN111326976A (en) * | 2020-03-26 | 2020-06-23 | 广东兴达利建设工程有限公司 | Energy-saving system of high-voltage cabinet |
| CN111831510A (en) * | 2020-07-13 | 2020-10-27 | Oppo广东移动通信有限公司 | Function regulation and control method and device and computer readable storage medium |
| CN114063680A (en) * | 2021-11-24 | 2022-02-18 | 国网冀北电力有限公司公司张家口供电公司 | Distribution box environment controller based on 5G Internet of things communication technology |
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