CN215817662U - Zero line treatment monitoring system and main system based on ZigBee - Google Patents
Zero line treatment monitoring system and main system based on ZigBee Download PDFInfo
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Abstract
The utility model provides a ZigBee-based zero line treatment monitoring system and a main system, wherein the zero line treatment monitoring system comprises: the device comprises a plurality of zero line treatment devices and a data set end; the data gathering end comprises a data gathering device; the data collector comprises a collecting ZigBee communication module; each zero line treatment device comprises a ZigBee communication module; set zigBee communication module for: converting a plurality of equipment power grid information in a plurality of equipment terminals through a preset protocol to obtain integrated power grid information; sending the integrated power grid information to a server side; and the equipment ZigBee communication module is used for providing a path for equipment power grid information in each equipment end to reach the data set end. According to the utility model, through a ZigBee networking technology, the power grid information can be monitored in real time, the state of a circuit can be controlled, and the abnormal emergency capability of a manager on the power grid and the protection capability on a terminal load are improved.
Description
Technical Field
The utility model relates to the technical field of power monitoring and electrical equipment, in particular to a ZigBee-based zero line treatment monitoring system and a main system.
Background
With the rapid development of economy, various electrical equipment are diversified, the power utilization environment of a user becomes more and more complex, and the problems of unbalanced three-phase load, phase-to-ground short circuit or interphase short circuit and the like are easily caused, so that the problem of zero line overcurrent is caused, and further, the electrical equipment is damaged or a line accident is caused.
In the related art, the devices are generally networked through signal cables or cables, the method wastes time and labor, greatly reduces reliability, is also not perfect in system function, only plays a role in checking, and has no way of comprehensively, intelligently and uniformly controlling the devices.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ZigBee-based zero line treatment monitoring system and a main system, which are used for monitoring and controlling the power grid information of a circuit in real time and improving the abnormal emergency capability of a power grid of a manager and the protection capability of the manager on a terminal load; meanwhile, the networking cost is reduced, and the accuracy and flexibility of processing the power grid abnormity are improved.
In a first aspect, the utility model provides a ZigBee-based zero line treatment monitoring system, which comprises: the device comprises a plurality of zero line treatment devices and a data set end; the data gathering end comprises a data gathering device; the data collector comprises a collecting ZigBee communication module; each zero line treatment device comprises a power grid information acquisition end and an equipment end, and each equipment end comprises an equipment ZigBee communication module; the integrated ZigBee communication module is respectively connected with the plurality of equipment ZigBee communication modules; set zigBee communication module for: carrying out protocol conversion on the power grid information of a plurality of devices in a plurality of device terminals, and outputting aggregate power grid information; sending the integrated power grid information to a server side; and the equipment ZigBee communication module is used for providing a path for equipment power grid information in each equipment end to reach the data set end.
Furthermore, the zero line treatment monitoring system also comprises a plurality of user terminals and a server terminal; the user side is connected with the ZigBee communication module of the equipment; the server end is connected with the integrated ZigBee communication module; the user side is in wireless connection with the server side; the equipment ZigBee communication module is used for remotely receiving a first instruction sent by a user side through wireless communication and sending the first instruction to the equipment side so that the equipment side governs the circuit state of the zero line; wherein, the first instruction comprises: and (4) encoding and executing data of the ZigBee communication module of the equipment.
Furthermore, the integrated ZigBee communication module is used for remotely receiving a second instruction sent by the server end through wireless communication and sending the second instruction to the equipment end so that the equipment end receives the second instruction and governs the circuit state of the zero line; the second instruction comprises a control instruction of a manager sent by the server side.
Furthermore, the user side is also used for displaying the power grid information and the circuit state to the user; and the server is also used for displaying and storing the power grid information and the circuit state for the user.
Furthermore, each zero line treatment device comprises a power grid information acquisition end and an equipment end; each equipment end comprises an equipment ZigBee communication module, a control unit and a signal processing unit; the number of the power grid information acquisition ends is the same as that of the equipment ends; the control unit is respectively connected with the signal processing unit and the equipment ZigBee communication module; the ZigBee communication module of the equipment is connected with the control unit; the signal processing unit is connected with the power grid information acquisition end; the power grid information acquisition terminal is used for acquiring initial power grid information of a target power grid or a target line; the signal processing unit is used for converting the initial power grid information into digital power grid information; the equipment ZigBee communication module is used for carrying out communication networking on the digital power grid information of the same signal processing unit and outputting the equipment power grid information; and the control unit is used for receiving the equipment power grid information and controlling the circuit state of the zero line.
Further, each power grid information acquisition end comprises a sampling transformer; the sampling mutual inductor is used for acquiring initial power grid information of a zero line or a phase line and sending the initial power grid information to the signal processing unit so that the signal processing unit converts the initial power grid information into digital power grid information; wherein the initial grid information includes voltage and current.
Furthermore, each device end also comprises a driving unit, a converter and an output unit; the signal processing unit is connected with the power grid information acquisition end; the control unit is respectively connected with the signal processing unit, the equipment ZigBee communication module and the driving unit; the converter is respectively connected with the driving unit and the output unit; the signal processing unit is used for receiving initial power grid information of the power grid information acquisition end and converting the initial power grid information into digital power grid information by utilizing an A/D conversion strategy; the initial power grid information is an analog signal, and the digital power grid information is a digital signal; the equipment ZigBee communication module is used for carrying out communication networking on the digital power grid information, outputting the equipment power grid information, receiving a first preset rule and a second preset rule sent by a user side, and sending the first preset rule and the second preset rule to the control unit; the control unit is used for receiving equipment power grid information and outputting a power grid state; comparing the power grid state with a first preset rule; if the power grid state does not accord with the first preset rule, a first action instruction is sent out; a drive unit for: receiving a first action command and controlling the power of the converter; an output unit for: and receiving the power of the converter and controlling the circuit state of the zero line.
Furthermore, each device end also comprises a switching value unit; the zero line treatment device also comprises a control end; the control end comprises an external release and a circuit breaker; the circuit breaker is arranged between a terminal load and a terminal power grid; the switching value unit is connected with the control unit; the external tripper is connected with the switching value unit and the circuit breaker respectively; the control unit is also used for judging whether the power grid state does not accord with a second preset rule; or when the circuit state cannot be effectively controlled, a second action instruction is sent out; the switching value unit is used for receiving the second action instruction and sending a switching value signal to the external release; and the external release is used for receiving the switching value signal and enabling the circuit breaker to cut off the circuit.
In a second aspect, an embodiment of the present invention provides a ZigBee-based main system for zero line treatment and monitoring, where the main system includes a terminal load, a terminal power grid, and a zero line treatment and monitoring system; the zero line treatment monitoring system is respectively connected with a terminal load and a terminal power grid;
furthermore, the zero line treatment monitoring system is used for monitoring the power grid information of the zero line and the phase line and controlling the circuit state of the zero line between the terminal load and the terminal power grid.
The embodiment of the utility model brings the following beneficial effects:
the utility model provides a ZigBee-based zero line treatment monitoring system and a main system, wherein the system comprises: the device comprises a plurality of zero line treatment devices and a data set end; the data gathering end comprises a data gathering device; the data collector comprises a collecting ZigBee communication module; each zero line treatment device comprises a power grid information acquisition end and an equipment end, and each equipment end comprises an equipment ZigBee communication module; the integrated ZigBee communication module is respectively connected with the plurality of equipment ZigBee communication modules; set zigBee communication module for: carrying out protocol conversion on the power grid information of a plurality of devices in a plurality of device terminals, and outputting aggregate power grid information; sending the integrated power grid information to a server side; and the equipment ZigBee communication module is used for providing a path for equipment power grid information in each equipment end to reach the data set end. According to the utility model, through a ZigBee networking technology, the power grid information can be monitored in real time, the state of a circuit can be controlled, and the abnormal emergency capability of a manager on the power grid and the protection capability on a terminal load are improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model as set forth above.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a zero line treatment monitoring system based on ZigBee according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another zero line treatment monitoring system based on ZigBee according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a main system for monitoring zero line treatment based on ZigBee according to an embodiment of the present invention.
Icon: 100-zero line treatment monitoring system; 101-zero line treatment device; 102-data set end; 103-a data aggregator; 104-integrating ZigBee communication modules; 105-a power grid information acquisition terminal; 106-device side; 107-equipment ZigBee communication module; 201-user terminal; 202-server side; 203-a sampling transformer; 204-a signal processing unit; 205-a control unit; 206-a drive unit; 207-a current transformer; 208-an output unit; 209-switching value unit; 210-external release; 211-circuit breaker; a 300-zero line treatment monitoring main system; 301-terminal load; 302-terminal grid.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the rapid development of economy, various electrical equipment are diversified, the power utilization environment of a user becomes more and more complex, and the problems of unbalanced three-phase load, phase-to-ground short circuit or interphase short circuit and the like are easily caused in the power utilization process, so that the problem of zero line overcurrent is caused, and finally, the damage of terminal equipment or line accidents are caused. With the gradual popularization of low-voltage terminal zero line control technology, the power utilization fault risk of terminal users is gradually reduced.
However, since the monitoring system is rarely established by networking, or a few devices are networked by signal cables, time and labor are wasted, reliability is greatly reduced, system functions are also not perfect, only a viewing effect can be achieved, and no way is provided for controlling power loads through a server side or a user side. The utility model describes a low-voltage terminal zero line control device and system based on a ZigBee technology, which replace the traditional cable networking and carry out networking through the ZigBee technology, thereby greatly reducing the networking cost of equipment; the control device and the control system can monitor the running states of the power grid and the equipment in real time, and improve the abnormal emergency capacity of the power grid and the protection capacity of the management personnel on the terminal equipment; through the ZigBee technology application, the polling or control of the equipment by a user or a manager becomes more convenient. The zero line protection device in the market does not have the function, so that a low-voltage terminal zero line monitoring system based on the ZigBee technology needs to be developed.
Based on the above problems, embodiments of the present invention provide a zero line control device, system and method based on the ZigBee technology, and the technology can be applied to various power and grid control scenarios.
Example one
In order to facilitate understanding of the embodiment of the present invention, first, a zero line treatment monitoring system 100 based on ZigBee is provided in the embodiment of the present invention. The system comprises: a plurality of neutral management devices 101 and a data set terminal 102.
The data collecting end 102 comprises a data collector 103; the data aggregator 103 comprises an aggregation ZigBee communication module 104; each zero line control device 101 comprises a power grid information acquisition end 105 and an equipment end 106, and each equipment end 106 comprises an equipment ZigBee communication module 107; the integrated ZigBee communication module 104 is respectively connected with a plurality of equipment ZigBee communication modules 107.
Particularly, ZigBee is a standard-based remote monitoring, control and sensor network application technology. The ZigBee standard has emerged to meet the needs of people for supporting low data rate, low power consumption, security and reliability, and for economic and efficient standard wireless network solutions. The core markets of the ZigBee standard are consumer electronics, energy management and efficiency, healthcare, home automation, telecommunication services, building automation, and industrial automation. Peripheral circuits, called as "ZigBee modules", are introduced around ZigBee chip technology, and the ZigBee modules are commonly used in the international standard of ieee802.15.4 and operate in the frequency band of 2.4GHZ, and 868MHZ is used in europe and 915MHZ is used in north america.
The integrated ZigBee communication module 104 is used for: converting the power grid information of the multiple devices in the multiple device ends 106 through a preset protocol to obtain integrated power grid information; sending the aggregated grid information to the server 202; and the device ZigBee communication module 107 is used for providing a path for the device power grid information in each device end 106 to reach the data set end 102.
In specific implementation, the integrated ZigBee communication module 104 is directly connected with the equipment ZigBee communication module 107; since each device 106 is provided with a plurality of device ZigBee communication modules 107, the set ZigBee communication module 104 is connected to the plurality of device ZigBee communication modules 107. The integrated ZigBee communication module 104 can perform protocol conversion and packaging on information in the multiple device terminals 106 through the device ZigBee communication module 107 to obtain integrated power grid information, and then transmit the integrated power grid information to the external server terminal 202. The integrated ZigBee communication module 104 is used for realizing communication networking of the ZigBee communication modules 107 of the equipment on the equipment terminals 106; node data can be transmitted between the device side 106 and the data collection side 102; wherein the node data refers to electrical parameter data in the plurality of device sides 106. The device ZigBee communication module 107 and the set ZigBee communication module 104 also have functions of wireless communication and GPRS (General packet radio service).
In specific implementation, in fig. 1, a device ZigBee communication module 107 in a first zero line treatment device 101 is a first device ZigBee communication module 107, a device ZigBee communication module 107 in a second zero line treatment device 101 is a second device ZigBee communication module 107 (not shown in the figure), and a device ZigBee communication module 107 in an nth zero line treatment device 101 is an nth device ZigBee communication module 107 (not shown in the figure); here, any one of the device ZigBee communication modules 107 can provide a path for the device grid information in each device side 106 to reach the data set side 102.
In a specific implementation, one data aggregation end 102 may include a data aggregator 103, multiple device ends 106 are networked through the ZigBee technology, each device end 106 may serve as a network node, and the data aggregation end 102 may transmit terminal data acquired by different device ends 106 to the data aggregator 103 through a path formed by the nodes. The server 202 is composed of one or more computer hosts, the terminal situation is known in real time by collecting data of the terminal power grid 302 on different nodes, the problems of voltage fluctuation, harmonic current, unbalance, short-circuit fault and the like on the terminal power grid 302 are observed in real time, and meanwhile, the zero line treatment device 101 can record the situation of the terminal power grid 302 as required and know the waveform situation of the load of the node; the same zero line treatment device 101 can write the set value of the protection value of the zero line current through a timing limit and an inverse time limit according to the sampling condition, so that the node load power grid can be cut off in time when destructive abnormality possibly occurs to the load, and the effect of protecting the terminal load 301 is achieved.
In a specific implementation, when the device ends 106 are far away from each other, the data aggregator 103 may be used to perform regional networking, and each data aggregator 103 may incorporate the device end 106 information in the region into the apparatus. When networking is performed among multiple areas by using the set ZigBee communication module 104 of the data set terminal 102, a plurality of corresponding data sets 103 need to be connected to a monitoring host (i.e., the server 202), so that the monitoring host can fully cover at least one terminal device in a building main body, and the zero line management device 101 can check the operation status of the terminal device or the relevant situation of a power grid of a certain node (a certain device 106) through the power grid information acquisition terminal 105. The device side 106 realizes networking communication function through the built-in device ZigBee communication module 107.
The embodiment of the utility model provides a ZigBee-based zero line treatment monitoring system, which comprises: the device comprises a plurality of zero line treatment devices and a data set end; the data gathering end comprises a data gathering device; the data collector comprises a collecting ZigBee communication module; each zero line treatment device comprises a power grid information acquisition end and an equipment end, and each equipment end comprises an equipment ZigBee communication module; the integrated ZigBee communication module is respectively connected with the plurality of equipment ZigBee communication modules; set zigBee communication module for: converting a plurality of equipment power grid information in a plurality of equipment terminals through a preset protocol to obtain integrated power grid information; sending the integrated power grid information to a server side; and the equipment ZigBee communication module is used for providing a path for equipment power grid information in each equipment end to reach the data set end. According to the utility model, through a ZigBee networking technology, the power grid information of the circuit is monitored and controlled in real time, and the abnormal emergency capability of a power grid of a manager and the protection capability of a terminal load are improved; meanwhile, the networking cost is reduced, and the accuracy and flexibility of processing the power grid abnormity are improved.
Example two
The embodiment of the utility model also provides another zero line treatment monitoring system 100 based on ZigBee, and as shown in FIG. 2, the embodiment is only described for one set of zero line treatment device 101 in the zero line treatment monitoring system 100.
As shown in fig. 2, the zero line governance monitoring system 100 includes: the zero line treatment device 101, the user terminal 201, the data set terminal 102 and the server terminal 202; the zero line treatment device 101 includes: the system comprises an equipment end 106, a control end and a power grid information acquisition end 105; the power grid information acquisition terminal 105 comprises a sampling transformer 203; the device side 106 includes: a signal processing unit 204, a control unit 205, a device ZigBee communication module 107, a driving unit 206, a current transformer 207, an output unit 208 and a switching value unit 209; the data collecting end 102 comprises a data collector 103; the data aggregator 103 comprises an aggregation ZigBee communication module 104; the controller includes a circuit breaker 211 and an external release 210, which are connected as shown in fig. 2.
The zero line treatment monitoring system 100 comprises a plurality of user terminals 201 and a server terminal 202; the user terminal 201 is connected with the equipment ZigBee communication module 107; the server 202 is connected with the integrated ZigBee communication module 104; the user terminal 201 is wirelessly connected with the server terminal 202; the equipment ZigBee communication module 107 is used for remotely receiving a first instruction sent by the user end 201 through wireless communication and sending the first instruction to the equipment end 106 so that the equipment end 106 controls the circuit state of the zero line according to the first instruction; wherein, the first instruction comprises: the equipment ZigBee communication module 107 encodes and executes data.
In a specific implementation, the device side 106 further includes a control unit 205, and the control unit 205 can control the circuit state of the neutral wire. The equipment ZigBee communication module 107 is used for: through wireless communication, a first instruction sent by the user terminal 201 is remotely received, and the first instruction is sent to the control unit 205, so that the control unit 205 controls the circuit state of the zero line according to the first instruction; wherein, the first instruction comprises: the equipment ZigBee communication module 107 encodes and executes data.
Specifically, the user terminal 201 may be connected to the device ZigBee communication module 107 through a dedicated wireless communication network, and an administrator may connect to the control unit 205 of the field direct connection device terminal 106 through the user terminal 201 (such as a mobile phone), specifically, a required power grid parameter instruction (i.e., a first instruction) may be sent to the device ZigBee communication module 107 through a requirement, then the device ZigBee communication module 107 sends the first instruction to the control unit 205 of the device terminal 106, and the control unit 205 sends required data to an electricity utilization administrator after receiving the instruction, or directly and intelligently controls a circuit state of a zero line, thereby implementing remote or field control of the device. Of course, since a plurality of device terminals 106 and a plurality of device ZigBee communication modules 107 may be arranged in the zero line governance monitoring system 100, the first instruction is to specify the codes (unique IDs) of the device ZigBee communication modules 107 and the execution data.
The integrated ZigBee communication module 104 is configured to remotely receive a second instruction sent by the server 202 through wireless communication, and send the second instruction to the device 106, so that the device 106 controls the circuit state of the zero line according to the second instruction; the second instruction includes a control instruction of the administrator sent by the server 202.
In a specific implementation, the integrated ZigBee communication module 104 serves as a bridge for the server 202 to communicate with the device 106, so that bidirectional data exchange can be achieved.
The user side 201 is also used for displaying the power grid information and the circuit state to the user; and the server 202 is further used for displaying and storing the power grid information and the circuit state to a user.
In a specific implementation, the server 202 is configured to display data (including initial grid data, aggregated grid data, digital grid data, device grid data, circuit status, and the like) transmitted by the data aggregation terminal 102 to the server 202 in real time, and the same server 202 may send an instruction (i.e., a second instruction) to control writing or reading of a device parameter according to a requirement of an administrator. In addition, the server 202 can store the data in real time.
In specific implementation, the user terminal 201 is wirelessly connected with the server terminal 202 through the mobile terminal device (mobile phone), so that the related conditions of the terminal device and the power grid can be checked in real time, and in addition, as the user terminal 201 for advanced management, the user terminal can be directly connected with the field device in a wireless connection mode on site, so that the field device can be controlled.
Each zero line control device 101 comprises a power grid information acquisition end 105, an equipment end 106 and a control end; each device end 106 comprises a device ZigBee communication module 107, a control unit 205, a signal processing unit 204, a driving unit 206, a current transformer 207, an output unit 208 and a switching value unit 209; a power grid information acquisition terminal 105 comprises a sampling transformer 203; a control end comprises a circuit breaker 211 and an external release 210; the number of the grid information acquisition terminals 105 is the same as that of the equipment terminals 106. The connection relation of the modules is as follows:
the control unit 205 is respectively connected with the signal processing unit 204, the equipment ZigBee communication module 107, the switching value unit 209 and the driving unit 206; the signal processing unit 204 is connected with the sampling transformer 203 of the power grid information acquisition terminal 105; the external release 210 is respectively connected with the circuit breaker 211 and the switching value unit 209; the converter 207 is connected with the output unit 208 and the driving unit 206 respectively; the device ZigBee communication module 107 is connected with the set ZigBee communication module 104 of the data set terminal 102.
The power grid information acquisition terminal 105 is used for acquiring initial power grid information of a target power grid or line; the signal processing unit 204 is configured to convert the initial grid information into digital grid information; the device ZigBee communication module 107 is configured to perform communication networking on the digital power grid information of the same signal processing unit 204 to obtain device power grid information; and the control unit 205 is used for controlling the circuit state of the zero line according to the equipment power grid information.
Each grid information acquisition terminal 105 comprises a sampling transformer 203; the sampling transformer 203 is used for acquiring initial power grid information of a zero line or a phase line and sending the initial power grid information to the signal processing unit 204, so that the signal processing unit 204 converts the initial power grid information into digital power grid information; wherein the initial grid information includes voltage and current.
The signal processing unit 204 is configured to receive initial power grid information of the power grid information acquisition terminal 105, and convert the initial power grid information into digital power grid information by using an a/D conversion strategy; the initial power grid information is an analog signal, and the digital power grid information is a digital signal; the device ZigBee communication module 107 is configured to perform communication networking on the digital power grid information to obtain device power grid information, receive a first preset rule and a second preset rule sent by the user side 201, and send the first preset rule and the second preset rule to the control unit 205; a control unit 205, configured to determine a power grid state according to the device power grid information; comparing the power grid state with a first preset rule; if the power grid state does not accord with the first preset rule, a first action instruction is sent out; a drive unit 206 for: controlling the power of the converter 207 according to the first action command; an output unit 208 for: the circuit state of the neutral wire is controlled according to the power of the current transformer 207.
Each device side 106 further comprises a switching value unit 209; the zero line treatment device 101 further comprises a control end; the control end comprises an external release 210 and a circuit breaker 211; the circuit breaker 211 is interposed between the terminal load 301 and the terminal grid 302; the switching value unit 209 is connected with the control unit 205; the external release 210 is respectively connected with the switching value unit 209 and the circuit breaker 211; the control unit 205 is further configured to, when the power grid state does not meet a second preset rule; or when the circuit state cannot be controlled according to the first action command, a second action command is sent out; the switching value unit 209 is configured to send a switching value signal to the external release 210 according to the second action instruction; and the external release 210 is used for enabling the circuit breaker 211 to break the circuit according to the switching value signal.
In a specific implementation, the functions of the modules of the zero line governance monitoring system 100 are as follows:
1) the sampling transformer 203 of the grid information acquisition terminal 105 acquires initial grid information of a target circuit (a zero line or a phase line) in real time and sends the initial grid information to the signal processing unit 204. The initial power grid information is various power grid information of one circuit, such as current parameters, voltage parameters, zero line current, harmonic waves and other related power quality information.
2) The signal processing unit 204 converts the initial grid information into digital grid information according to an a/D conversion strategy; the digital grid information is then sent to the control unit 205, and the control unit 205 sends the digital grid information to the device ZigBee communication module 107. The initial power grid information is an analog signal, and the digital power grid information is a digital signal; digital grid information includes current and voltage, including various types of grid information.
3) The device ZigBee communication module 107 has 2 functions here: firstly, the system is used for carrying out communication networking on different types of digital power grid information of the same equipment end 106 to obtain equipment power grid information, and sending the equipment power grid information to the control unit 205; receiving the first preset rule and the second preset rule sent by the user side 201, and sending the first preset rule and the second preset rule to the control unit 205.
4) The control unit 205 analyzes and determines the power grid state according to the equipment power grid information and a built-in CPU algorithm; comparing the power grid state with a first preset rule; if the grid state does not meet the first predetermined rule, a first action command is sent to the driving unit 206.
5) The driving unit 206 controls the power of the converter 207 according to the first operation command; the output unit 208 can control the circuit state of the zero line, that is, the magnitude of the zero current and the voltage, based on the power of the converter 207.
Specifically, the driving unit 206 controls the on/off of the power switch of the converter 207, and the power switch is connected to the terminal power grid 302 through the output unit 208, so that the functions of zero line current management, harmonic management or three-phase imbalance management and the like in the process are realized, and the power quality of the power grid is further controlled.
6) If the fourth step is completed, the control unit 205 finds that the current power grid state does not conform to the second preset rule; alternatively, when the circuit state cannot be controlled according to the first operation command in the fifth step, the second operation command is issued to the switching value unit 209.
7) The switching value unit 209 can send a switching value signal to the external release 210 according to the second action instruction; the external release 210 can cause the circuit breaker 211 to break the circuit according to the switching value signal. Here, the circuit breaker 211 is interposed between a terminal load 301 and a terminal grid 302.
Specifically, the control end serves as an execution unit of the system, and includes an external release 210 and a circuit breaker 211. The control unit 205 of the device side 106 is further configured to compare the power grid state with a second preset rule, and when the comparison result shows that the power grid is in a serious or uncontrollable abnormality or the first instruction cannot effectively control the circuit state, the control unit 205 timely and accurately gives a switching value signal to the external release 210, and drives the circuit breaker 211 of the terminal load 301 to be disconnected through the disconnecting action of the external release 210, so as to protect the load from being damaged due to the abnormality of the power grid. In particular, the disconnecting operation is directed to the situation where an uncontrollable abnormality of the power grid may damage the back-end equipment or the line, and the purpose of the disconnecting operation is to protect the end load 301 from being damaged.
Besides automatically controlling the circuit state according to the real-time collected power grid information, the circuit state can be controlled according to an instruction input by a user, and at the moment, the specific functions of each module are as follows:
1) the user inputs a first instruction to the user terminal 201 according to the real-time displayed power grid information or other conditions.
2) The user terminal 201 sends the first instruction to the equipment ZigBee communication module 107 through wireless communication, and the equipment ZigBee communication module 107 sends the first instruction to the control unit 205.
3) The control unit 205 controls the circuit state according to the first instruction.
The user terminal 201 and the mobile phone terminal described above are connected with the monitoring host through wireless communication, and off-site monitoring can be realized through the mobile phone terminal; similarly, because equipment zigBee communication module 107 has the wireless communication function, user end 201 can be on-the-spot through cell-phone terminal and equipment directly connect through wireless communication, can write into the setting through the cell-phone end to equipment parameter, has greatly made things convenient for the maneuverability of equipment, can eliminate controlling of equipment simultaneously and show, reduces the manufacturing cost of equipment. The same user mobile phone terminal can also check the state of a certain node in real time through the interconnection with the monitoring host, and can also write in the parameters of a certain node device. The monitoring system provides higher flexibility and convenience for low-voltage terminal zero line treatment equipment.
Except for automatically controlling the circuit state according to the real-time collected power grid information and controlling the circuit according to the user side 201, the circuit state can be controlled through the server side 202, and at the moment, the specific functions of each module are as follows:
1) the user inputs a second instruction to the server 202 according to the real-time displayed power grid information or other conditions.
2) The server 202 sends the second instruction to the set ZigBee communication module 104 through wireless communication, the set ZigBee communication module 104 sends the second instruction to the device ZigBee communication module 107, and the device ZigBee communication module 107 sends the second instruction to the control unit 205.
3) The control unit 205 controls the circuit state according to the second instruction.
Specifically, the server 202 may be connected to a mobile phone terminal (i.e., the user terminal 201) through a dedicated wireless communication network, and send the terminal power grid 302 information to a manager; the user end 201 is wirelessly connected with the server end 202 through the mobile end device, a manager can directly connect the server end 202 or the field device end 106 through a mobile phone and send a required power grid parameter instruction according to requirements, and the device end 106 can send required data to a power utilization manager after receiving the instruction, so that remote or field device control is realized.
In addition, the device side 106 further includes a power supply unit, and the power supply unit is configured to obtain power from a power grid, and convert the electric power of the power grid into direct currents of different levels required by each functional unit, so that the zero line treatment monitoring system 100 can work normally.
According to the embodiment of the utility model, the ZigBee networking technology is applied to the scene of low-voltage zero line control, and the remote control technology and the signal conversion technology of the user terminal are combined, so that higher flexibility and convenience can be provided for the low-voltage terminal zero line treatment device. According to the embodiment of the utility model, the low-voltage terminal zero line treatment device is networked through the ZigBee technology, so that the traditional cable networking is replaced, and the networking cost of equipment is greatly reduced; by the aid of a monitoring system consisting of the sampling mutual inductor and the equipment end, running states of a power grid and equipment can be monitored in real time, and abnormal emergency capacity of a power grid and protection capacity of terminal equipment of managers are improved; through the application of the ZigBee technology, the polling or control of the equipment by a user or a manager becomes more convenient. According to the embodiment of the utility model, the real-time power grid state is compared and judged with the preset rule of the user, so that the power grid quality can be controlled more accurately.
EXAMPLE III
The embodiment of the utility model also provides a ZigBee-based zero line governance monitoring main system 300, as shown in FIG. 3.
The zero line treatment monitoring main system 300 comprises a terminal load 301, a terminal power grid 302 and a zero line treatment monitoring system 100; the zero line treatment monitoring system 100 is respectively connected with a terminal load 301 and a terminal power grid 302; the zero line treatment monitoring system 100 is configured to monitor power grid information of a zero line and a phase line, and control a circuit state of the zero line between the terminal load 301 and the terminal power grid 302.
Specifically, the zero line treatment monitoring system 100 directly controls the circuit state of the zero line, and the stable and normal operation of the whole circuit is realized by controlling the circuit state of the zero line.
The implementation principle and the generated technical effect of the main system for monitoring and controlling zero line treatment based on ZigBee provided by the embodiment of the utility model are the same as those of the above-mentioned system for monitoring and controlling zero line treatment based on ZigBee.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a zero line administers monitored control system based on zigBee which characterized in that, the system includes: the device comprises a plurality of zero line treatment devices and a data set end;
the data aggregation end comprises a data aggregator; the data collector comprises a collecting ZigBee communication module;
each zero line treatment device comprises a power grid information acquisition end and an equipment end, and each equipment end comprises an equipment ZigBee communication module;
the integrated ZigBee communication module is respectively connected with the plurality of equipment ZigBee communication modules;
the set ZigBee communication module is used for: carrying out protocol conversion on the power grid information of a plurality of devices in the plurality of device terminals, and outputting aggregate power grid information; sending the integrated power grid information to a server side;
and the equipment ZigBee communication module is used for providing a path for equipment power grid information in each equipment end to reach the data collection end.
2. The zero line governance monitoring system of claim 1, further comprising a plurality of user terminals and a server terminal;
the user side is connected with the equipment ZigBee communication module; the server end is connected with the integrated ZigBee communication module; the user side is in wireless connection with the server side;
the equipment ZigBee communication module is used for remotely receiving a first instruction sent by the user side through wireless communication and sending the first instruction to the equipment side so that the equipment side governs the circuit state of a zero line;
wherein the first instruction comprises: and the ZigBee communication module of the equipment encodes and executes data.
3. The zero line treatment monitoring system according to claim 2, wherein the integrated ZigBee communication module is configured to remotely receive a second instruction sent by the server end through wireless communication, and send the second instruction to the equipment end, so that the equipment end receives the second instruction and treats the circuit state of the zero line;
wherein, the second instruction comprises a control instruction of a manager sent by the server.
4. The zero line governance monitoring system of claim 2, wherein the user terminal is further configured to present grid information and circuit status to the user;
and the server is also used for displaying and storing the power grid information and the circuit state for the user.
5. The zero line governance monitoring system of claim 1, wherein each of said zero line governance devices comprises a grid information acquisition end and an equipment end;
each equipment end comprises an equipment ZigBee communication module, a control unit and a signal processing unit; the number of the power grid information acquisition ends is the same as that of the equipment ends;
the control unit is respectively connected with the signal processing unit and the equipment ZigBee communication module; the ZigBee communication module of the equipment is connected with the control unit; the signal processing unit is connected with the power grid information acquisition end;
the power grid information acquisition terminal is used for acquiring initial power grid information of a target power grid or line;
the signal processing unit is used for converting the initial power grid information into digital power grid information;
the equipment ZigBee communication module is used for carrying out communication networking on the digital power grid information of the same signal processing unit and outputting equipment power grid information;
and the control unit is used for receiving the equipment power grid information and controlling the circuit state of the zero line.
6. The zero line governance monitoring system of claim 5, wherein each grid information acquisition end comprises a sampling transformer;
the sampling mutual inductor is used for acquiring initial power grid information of a zero line or a phase line and sending the initial power grid information to the signal processing unit so that the signal processing unit converts the initial power grid information into digital power grid information;
wherein the initial grid information comprises a voltage and a current.
7. The zero line governance monitoring system of claim 5, wherein each equipment end further comprises a drive unit, a converter and an output unit;
the signal processing unit is connected with the power grid information acquisition end; the control unit is respectively connected with the signal processing unit, the equipment ZigBee communication module and the driving unit; the converter is respectively connected with the driving unit and the output unit;
the signal processing unit is used for receiving initial power grid information of the power grid information acquisition end and converting the initial power grid information into the digital power grid information by utilizing an A/D conversion strategy; the initial power grid information is an analog signal, and the digital power grid information is a digital signal;
the equipment ZigBee communication module is used for carrying out communication networking on the digital power grid information, outputting equipment power grid information, receiving a first preset rule and a second preset rule sent by a user side, and sending the first preset rule and the second preset rule to the control unit;
the control unit is used for receiving the equipment power grid information and outputting a power grid state; comparing the power grid state with the first preset rule; if the power grid state does not accord with the first preset rule, a first action instruction is sent out;
the drive unit is used for: receiving the first action command and controlling the power of the converter;
the output unit is used for: and receiving the power of the converter and controlling the circuit state of the zero line.
8. The zero line governance monitoring system of claim 7, wherein each equipment end further comprises a switching value unit;
the zero line treatment device also comprises a control end; the control end comprises an external release and a circuit breaker; the circuit breaker is arranged between a terminal load and a terminal power grid;
the switching value unit is connected with the control unit; the external release is respectively connected with the switching value unit and the circuit breaker;
the control unit is further used for judging whether the power grid state does not accord with the second preset rule; or when the circuit state cannot be effectively controlled, a second action instruction is sent out;
the switching value unit is used for receiving the second action instruction and sending a switching value signal to the external release;
and the external release is used for receiving the switching value signal and enabling the circuit breaker to cut off the circuit.
9. A ZigBee-based zero line treatment monitoring main system is characterized in that the main system comprises a terminal load, a terminal power grid and a zero line treatment monitoring system;
and the zero line treatment monitoring system is respectively connected with the terminal load and the terminal power grid.
10. The main zero line governance monitoring system according to claim 9, wherein said zero line governance monitoring system is adapted to monitor electrical network information of a zero line and a phase line and to control a circuit state of a zero line between said terminal load and said terminal electrical network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122172605.7U CN215817662U (en) | 2021-09-08 | 2021-09-08 | Zero line treatment monitoring system and main system based on ZigBee |
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|---|---|---|---|
| CN202122172605.7U CN215817662U (en) | 2021-09-08 | 2021-09-08 | Zero line treatment monitoring system and main system based on ZigBee |
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| CN202122172605.7U Active CN215817662U (en) | 2021-09-08 | 2021-09-08 | Zero line treatment monitoring system and main system based on ZigBee |
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