CN217157416U - Photovoltaic power plant cable theftproof early warning device - Google Patents
Photovoltaic power plant cable theftproof early warning device Download PDFInfo
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- CN217157416U CN217157416U CN202220587849.3U CN202220587849U CN217157416U CN 217157416 U CN217157416 U CN 217157416U CN 202220587849 U CN202220587849 U CN 202220587849U CN 217157416 U CN217157416 U CN 217157416U
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Abstract
The application relates to a photovoltaic power plant cable theftproof early warning device includes: the main machine is arranged at one end of a cable between the inverter and the combiner box and comprises a first power supply module, a first communication module, an alarm module, a first control module and a wireless transmission module, wherein the first communication module is electrically connected with the cable; the terminal of the other end of the cable arranged between the inverter and the combiner box comprises a second power supply module, a second communication module and a second control module, wherein the second communication module is electrically connected with the cable, the second power supply module is electrically connected with the second control module to supply power to the terminal, and the second control module is electrically connected with the second communication module. The problem that photovoltaic power plant cable theftproof early warning reliability is low can be improved to this application.
Description
Technical Field
The application relates to the technical field of cable anti-theft early warning, in particular to a photovoltaic power station cable anti-theft early warning device.
Background
The photovoltaic power station refers to a power generation system which utilizes solar energy and is composed of electronic elements such as a crystalline silicon plate, an inverter and the like. In order to improve photovoltaic power plant's result of use, can adopt polylith solar energy crystalline silicon board to use simultaneously usually, assemble the electric energy that obtains through the collection flow box, the collection flow box is carried the electric energy to the dc-to-ac converter through the cable again.
The situation that the cable is stolen happens occasionally, the existing photovoltaic power station can carry out anti-theft early warning on the cable between the combiner box and the inverter station, the anti-theft early warning method generally comprises the steps of manually patrolling and video monitoring, correlation information of the stolen cable needs to be manually checked, meanwhile, the anti-theft early warning method of manually patrolling has a time blind spot, and the early warning method of video monitoring has a visual field blind spot, so that certain anti-theft early warning defects exist.
SUMMERY OF THE UTILITY MODEL
Based on this, provide a photovoltaic power plant cable theftproof early warning device, improved among the prior art photovoltaic power plant cable's theftproof early warning reliability low problem.
The utility model provides a photovoltaic power plant cable theftproof early warning device, include:
the photovoltaic power station comprises a host and a control module, wherein the host is arranged at one end of a cable between an inverter and a combiner box of the photovoltaic power station and comprises a first power supply module, a first communication module, an alarm module, a first control module and a wireless transmission module;
the terminal is arranged between the inverter of the photovoltaic power station and the combiner box and comprises a second power supply module, a second communication module and a second control module, the second communication module is electrically connected with the cable, the second power supply module is electrically connected with the second control module to supply power to the terminal, and the second control module is electrically connected with the second communication module.
In one embodiment, the first communication module is provided with a first standard interface for sending a first standard carrier signal to the second communication module, the second communication module is provided with a second standard interface for sending a second standard carrier signal to the first communication module after receiving the first standard carrier signal, and the first standard interface and the second standard interface are in communication connection through the cable.
In one embodiment, the first communication module is further provided with a first custom interface for sending a first custom carrier signal to the second communication module, the second communication module is further provided with a second custom interface for sending a second custom carrier signal to the first communication module after receiving the first custom carrier signal, and the first custom interface and the second custom interface are in communication connection through the cable.
In one embodiment, the host further comprises a first sampling module electrically connected to the cable and the first control module for converting a voltage signal of the cable into a digital signal and transmitting the digital signal to the first control module;
the terminal also comprises a second sampling module which is electrically connected with the cable and the second control module and is used for converting the voltage signal of the cable into a digital signal.
In one embodiment, a first relay is arranged between the first communication module and the cable, and a second relay is arranged between the second communication module and the cable;
wherein the first relay and the second relay are both remotely connected with the mobile terminal.
In one embodiment, the main machine is arranged at one end of the cable close to the inverter, and the terminal is arranged at one end of the cable close to the combiner box.
In one embodiment, the first power supply module includes a first energy storage battery, and a first charging circuit for charging the first energy storage battery, the first charging circuit is provided with an input end for external power connection, an output end of the first charging circuit is electrically connected with the input end of the first energy storage battery, and an output end of the first energy storage battery is electrically connected with the first control module;
the second power supply module further comprises a second energy storage battery and a second charging circuit, the second charging circuit is used for charging the second energy storage battery, the second charging circuit is provided with an input end used for external power connection, the output end of the second charging circuit is electrically connected with the input end of the second energy storage battery, and the second energy storage battery is electrically connected with the second control module.
In one embodiment, the first power supply module further includes a first voltage-reducing circuit for converting a voltage of the cable, an input terminal of the first voltage-reducing circuit is electrically connected to the cable, and an output terminal of the first voltage-reducing circuit is electrically connected to an input terminal of the first charging circuit;
the second power supply module comprises a second voltage reduction circuit for converting the voltage of the cable, the input end of the second voltage reduction circuit is electrically connected with the cable, and the output end of the second voltage reduction circuit is electrically connected with the input end of the second charging circuit.
In one embodiment, the input end and the output end of the first voltage reduction circuit are respectively provided with a first protection switch for controlling circuit connection; and the input end and the output end of the second voltage reduction circuit are respectively provided with a second protection switch for controlling circuit connection.
In one embodiment, the first protection switch is provided with a first absorption circuit for absorbing a peak voltage; the second protection switch is provided with a second absorption circuit for absorbing the peak voltage.
According to the photovoltaic power station cable anti-theft early warning device, communication among the communication modules is achieved through the cable, if the cable is stolen, the wireless transmission module sends the stolen related information of the cable to the mobile phone of a worker, and the alarm module is used for alarming, so that the problem that the anti-theft early warning reliability of the photovoltaic power station cable in the prior art is low can be solved; in addition, just after the first control module is wirelessly connected with the external mobile terminal through the wireless transmission module, the first control module can transmit stolen information to the external mobile terminal through the wireless transmission module, so that a worker holding the mobile terminal can remotely check whether the cable is stolen.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a cable anti-theft warning device according to an embodiment;
FIG. 2 is a schematic diagram of a connection structure of a first communication module and a second communication module according to an embodiment;
FIG. 3 is a schematic diagram of a connection structure of a first acquisition module and a second acquisition module in one embodiment;
FIG. 4 is a schematic diagram of a connection structure of a first power supply module and a second power supply module in one embodiment;
fig. 5 is a schematic diagram of a connection structure of a first power supply module and a second power supply module in another embodiment;
FIG. 6 is a schematic diagram of a connection structure of the first protection switch and the first voltage-dropping circuit in one embodiment;
FIG. 7 is a schematic diagram of a connection structure of a second protection switch and a second voltage step-down circuit in another embodiment;
FIG. 8 is a schematic diagram of a connection structure of a first absorption circuit and a first protection switch in one embodiment;
fig. 9 is a schematic diagram of a connection structure of a second absorption circuit and a second protection switch in another embodiment.
The reference numbers are as follows:
1. the first protection switch is arranged at the input end of the first voltage reduction circuit; 2. the second protection switch is arranged at the input end of the second voltage reduction circuit;
1', a first protection switch at the output end of the first voltage reduction circuit; 2', a second protection switch at the output end of the second voltage reduction circuit;
s1, a first absorption circuit at the input end of the first voltage reduction circuit; s2, a second absorption circuit at the input end of the second voltage reduction circuit;
s1', a first absorption circuit at the output end of the first voltage reduction circuit; s2', a second absorption circuit at the output end of the second voltage reduction circuit;
r1, a first resistor at the input end of the first voltage reduction circuit; d1, a first diode at the input end of the first voltage reduction circuit; c1, a first capacitor at the input end of the first voltage reduction circuit;
r1', a first resistor at the output end of the first voltage reduction circuit; d1', a first diode at the output end of the first voltage reduction circuit; c1', a first capacitor at the output end of the first voltage reduction circuit;
r2, a first resistor at the input end of the second voltage reduction circuit; d2, a first diode at the input end of the second voltage reduction circuit; c2, a first capacitor at the input end of the second voltage reduction circuit;
r2', a first resistor at the output end of the second voltage reduction circuit; d2', the first diode of the second step-down circuit output end; c2', a first capacitor at the output end of the second voltage reduction circuit;
a1, a control end of the input end of the first voltage reduction circuit; a2, and the conduction end of the input end of the first voltage reduction circuit; a3, the grounding end of the input end of the first voltage reduction circuit;
a 1', a control end of the output end of the first voltage reduction circuit; a 2', the conducting end of the output end of the first voltage reduction circuit; a 3', the grounding end of the output end of the first voltage reduction circuit;
b1, a control end of the input end of the second voltage reduction circuit; b2, and the conduction end of the input end of the second voltage reduction circuit; b3, the grounding end of the input end of the second voltage reduction circuit;
b 1' and a control end of the output end of the second voltage reduction circuit; b 2', and the conducting end of the output end of the second voltage reduction circuit; b 3' and the ground terminal of the output terminal of the second voltage-reducing circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention.
References in this specification to "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are for convenience only to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the utility model discloses a photovoltaic power plant cable theftproof early warning device, include:
the photovoltaic power station comprises a host and a control module, wherein the host is arranged at one end of a cable between an inverter and a combiner box of the photovoltaic power station and comprises a first power supply module, a first communication module, an alarm module, a first control module and a wireless transmission module;
the terminal is arranged between the inverter of the photovoltaic power station and the combiner box and comprises a second power supply module, a second communication module and a second control module, the second communication module is electrically connected with the cable, the second power supply module is electrically connected with the second communication module and the second control module, and the second control module is electrically connected with the second communication module.
The device is mainly applied to cable theftproof early warning between collection flow box and the dc-to-ac converter in the photovoltaic power plant, there is first communication block and second communication module to pass through cable electric connection, if the cable is stolen, first communication module just can't carry out normal communication through the cable with second communication module, the carrier signal that the second communication module at terminal can not be received in the predetermined time after the first communication module of host computer sends carrier signal so, then the first control module of host computer can judge that the cable of this node takes place unusually, thereby control alarm module reports to the police, alarm module can be audible alarm, can also be light alarm.
Wherein, the host computer is installed in the one end that is close to the dc-to-ac converter, and the terminal installation is in the one end that is close to the collection flow box, because the contravariant station has the staff often to manage, and when the cable was stolen, the staff at contravariant station can be timely through the stolen information of alarm module acquisition cable.
In some embodiments, as shown in fig. 2, the first communication module is provided with a first standard interface for sending a first standard carrier signal to the second communication module, the second communication module is provided with a second standard interface for sending a second standard carrier signal to the first communication module after receiving the first standard carrier signal, and the first standard interface and the second standard interface are in communication connection through the cable.
Illustratively, the first standard interface and the second standard interface are power line carrier communication interfaces (PLC), the host sends a polling command to the terminal through a PLC communication mode, if the terminal device responds to the host within a valid time, the cable is judged to be complete and safe, if the terminal device does not respond to the host, the node cable is judged to be stolen, and the host immediately sends stealing information to a mobile phone of a patrol security guard through a wireless transmission module, wherein each cable between the combiner box and the inverter is provided with a corresponding node number, and the stealing information received by the mobile phone of the security guard comprises the node number of the cable and the stealing time.
In some embodiments, as shown in fig. 2, the first communication module is further provided with a first custom interface for sending a first custom carrier signal to the second communication module, the second communication module is further provided with a second custom interface for sending a second custom carrier signal to the first communication module after receiving the first custom carrier signal, and the first custom interface and the second custom interface are in communication connection through the cable.
Illustratively, the first custom interface and the second custom interface are custom switch signal interfaces of 1 Hz level, and 1 Hz pulse signals of 8 bits are simulated through the switch signals, wherein the first 2 high pulses represent a start bit, and the last 6 pulses contain an address bit.
In the use process, the PLC standard protocol communication is combined with the self-defined switch signal communication, and in two communication modes, as long as one communication is successful, the condition that the cable between the host end and the terminal is not damaged or stolen can be confirmed, so that the accuracy of the communication process is improved, and the reliability of the cable anti-theft early warning is improved.
In some embodiments, as shown in fig. 3, the host further includes a first sampling module electrically connected to the cable and the first control module for converting a voltage signal of the cable into a digital signal and transmitting the digital signal to the first control module;
the terminal also comprises a second sampling module which is electrically connected with the cable and the second control module and is used for converting the voltage signal of the cable into a digital signal.
In the use process, the first sampling module and the second acquisition module are digital-to-analog conversion modules, analog signals are converted into electric signals by acquiring analog signals on a cable, exemplarily, the first sampling module and the second acquisition module convert the analog signals into voltage signals, and whether the cable is in a normal working state or not is judged by a worker by checking the voltage value of the cable.
In some embodiments, a first relay is disposed between the first communication module and the cable, and a second relay is disposed between the second communication module and the cable;
wherein the first relay and the second relay are both remotely connected with the mobile terminal. The connection mode of the first relay and the second relay with the mobile terminal is not particularly limited, and wireless connection, local area network connection and the like commonly used in the field can be adopted. For example, a wireless transmission module may be provided at the terminal, the first relay is wirelessly connected to the mobile terminal through the wireless transmission module of the host, and the second relay is wirelessly connected to the mobile terminal through the wireless transmission module of the terminal.
The utility model discloses in, wireless transmission module can be GPRS (General Packet Radio Service, mobile data Service) communication unit, and when the cable took place to steal, first control module can send the associated information of theftproof early warning to staff's removal end, for example, the cell-phone end, for example: the association information may include: the serial number, the place, the time and the like of the stolen line, the staff can acquire the stolen information of the cable in real time, and the processing measures can be taken conveniently and timely.
In the use, the time slot of daytime, thereby the staff can directly acquire the user state of cable through patrol and the voltage data of reading the cable, and at this moment, first control module control disconnection first relay and second relay to reduce cable voltage in daytime too high, lead to the probability that host computer and terminal damaged, thereby reduce the probability that the high pressure on the cable caused the damage to communication module in daytime.
Illustratively, in the daytime, the solar battery generates electricity, the cable is provided with 1000-1500V direct-current high-voltage electricity, the high voltage is converted into 12V voltage through the voltage reduction circuit at this time, then the lithium battery is charged, and the first relay and the second relay are in an off state at this time, so that the cable is disconnected from the first communication module and the second communication module, and the high voltage on the cable is prevented from damaging the first communication module and the second communication module.
In addition, the first control module is in communication connection with an external mobile terminal through the wireless transmission module, so that the first relay and the second relay can be controlled to be opened and closed through the mobile terminal, the connection and disconnection between the first communication module and the cable and between the second communication module and the cable are controlled, the use states of the host and the terminal are controlled, for example, in the daytime, the solar battery generates electricity to cause high-voltage on the cable, and a worker controls the first relay and the second relay to be disconnected through the mobile terminal, so that the first communication module and the second communication module are disconnected from the cable, and the defense of the cable is cancelled; at the unmanned guard's period of time night, solar cell does not generate electricity, does not have voltage on the cable this moment, and the staff accessible removes end remote control operation, opens first relay and second relay for first communication module and second communication module and cable electric connection, thereby realize the cloth of theftproof early warning and defend.
In some embodiments, as shown in fig. 4, the first power supply module includes a first energy storage battery, and a first charging circuit for charging the first energy storage battery, the first charging circuit is provided with an input terminal for external power connection, an output terminal of the first charging circuit is electrically connected to the input terminal of the first energy storage battery, and an output terminal of the first energy storage battery is electrically connected to the first control module;
the second power supply module further comprises a second energy storage battery and a second charging circuit, the second charging circuit is used for charging the second energy storage battery, the second charging circuit is provided with an input end used for external power connection, the output end of the second charging circuit is electrically connected with the input end of the second energy storage battery, and the second energy storage battery is electrically connected with the second control module.
Illustratively, when the first power supply module and the second power supply module are insufficient in power, the situation that detection data are inaccurate may occur in the anti-theft early warning, so that the work of each module of the host and the terminal is abnormal, the first energy storage battery and the second energy storage battery which can be charged and discharged are arranged, and power can be supplemented to the first power supply module and the second power supply module at any time by matching the first charging circuit and the second charging circuit, so that the reliability of the anti-theft early warning is improved.
In some embodiments, as shown in fig. 5, the first power supply module further includes a first voltage-reducing circuit for converting a voltage of the cable, an input terminal of the first voltage-reducing circuit is electrically connected to the cable, and an output terminal of the first voltage-reducing circuit is electrically connected to an input terminal of the first charging circuit;
the second power supply module comprises a second voltage reduction circuit for converting the voltage of the cable, the input end of the second voltage reduction circuit is electrically connected with the cable, and the output end of the second voltage reduction circuit is electrically connected with the input end of the second charging circuit.
Illustratively, after the voltage of the cable is reduced through the first voltage reduction circuit and the second voltage reduction circuit, the first energy storage battery and the second energy storage battery are directly charged, the photovoltaic power station is in a power generation state in the daytime, and when the cable transmits electric energy, the first energy storage battery and the second energy storage battery are charged, so that the first energy storage battery and the second energy storage battery can keep healthy electric quantity values, the use convenience of the first energy storage battery and the second energy storage battery is improved, and the phenomenon of power shortage of the power supply module is reduced.
In some embodiments, as shown in fig. 6, the input end and the output end of the first voltage-reducing circuit are respectively provided with a first protection switch for controlling circuit connection; and the input end and the output end of the second voltage reduction circuit are respectively provided with a second protection switch for controlling circuit connection.
Specifically, first protection switch all includes the earthing terminal, switches on the end and is used for control first protection switch switches on or the control end that ends, first protection switch's control end with first control module electric connection, first protection switch's earthing terminal ground connection, one first protection switch's switch on end with first step-down circuit's output electric connection, another first protection switch's switch on end with first step-down circuit's input electric connection.
Illustratively, the first protection switch may be a field effect transistor, a gate of the field effect transistor corresponds to a control terminal of the first protection switch, a drain of the field effect transistor corresponds to a conducting terminal of the first protection switch, a source of the field effect transistor corresponds to a grounding terminal of the first protection switch, and when the control terminal of the first protection switch is at a corresponding trigger level, the circuit is conducted; during the use, when the first protection switch of first step-down circuit input and the first protection switch of first step-down circuit output satisfied the condition of switching on of field effect transistor simultaneously, could make first step-down circuit switch on to improve first step-down circuit's withstand voltage ability, reduced the probability that first step-down circuit damaged, also reduced the device lectotype cost for improving first step-down circuit voltage resistance simultaneously.
As shown in fig. 7, the second protection switch also includes a ground terminal, a conducting terminal and a control terminal for controlling the second protection switch to be turned on or off, the terminal further includes a second control module for transmitting a control signal to the second protection switch, the control terminal of the second protection switch is electrically connected to the second control module, the ground terminal of the second protection switch is grounded, the second protection switch is paired, one of the conducting terminals of the second protection switch is electrically connected to the output terminal of the second voltage-reducing circuit, and the other conducting terminal of the second protection switch is electrically connected to the input terminal of the second voltage-reducing circuit.
As shown in fig. 8, the first protection switch is provided with a first absorption circuit for absorbing a peak voltage; as shown in fig. 9, the second protection switch is provided with a second absorption circuit for absorbing a peak voltage.
Specifically, the first absorption circuit at the input end of the first voltage reduction circuit includes a first resistor R1, a first diode D1 and a first capacitor C1, two ends of the first resistor R1 are electrically connected to two ends of a first diode D1, an anode of the first diode D1 is electrically connected to a conducting end of the first protection switch, a cathode of the first diode D1 is electrically connected to one end of the first capacitor C1, and one end of the first capacitor C1, which is far away from the first diode D1, is electrically connected to a ground end of the first protection switch; the first absorption circuit structure at the output end of the first voltage-reducing circuit is the same as the first absorption circuit structure at the input end of the first voltage-reducing circuit, and is not described herein again.
The second absorption circuit at the input end of the second voltage reduction circuit comprises a second capacitor C2, a second resistor R2 and a second diode D2, one end of the second capacitor C2 is electrically connected with the ground end of the second protection switch, the other end of the second capacitor C2 is electrically connected with one end of a second resistor R2, one end of the second resistor R2 far away from the second capacitor C2 is electrically connected with the conduction end of the second protection switch, the anode of the second diode D2 is electrically connected with the conduction end of the second protection switch, and the anode of the second diode D2 is electrically connected with one end of the second resistor R2 close to the second capacitor C2; the second absorption circuit structure at the output end of the second voltage-reducing circuit is the same as the second absorption circuit structure at the input end of the second voltage-reducing circuit, and is not described herein again.
Through the arrangement of the first absorption circuit, the voltage spike of the cable can be inhibited, so that the probability of overvoltage damage of the first protection switch is reduced, illustratively, the capacitor is charged when the spike voltage occurs by matching with the one-way conduction effect of the first diode, and then the energy stored by the capacitor is released through the first resistor, so that the inhibition effect on the spike voltage is achieved; therefore, the voltage-resistant grade of the second voltage-reducing circuit is improved, and the model selection cost for improving the voltage-resistant grade of the second voltage-reducing circuit is reduced.
For clearer show the utility model relates to a photovoltaic power plant cable theftproof early warning device explains summarily:
at daytime, photovoltaic power plant electricity generation, the cable is in high-pressure state, can not carry out the arrangement of theftproof early warning to the cable, simultaneously, through being connected between first communication module of first relay disconnection and the cable, through being connected between second communication module of second relay disconnection and the cable to reduce the cable high pressure and cause the probability of damage to first communication module and second communication module.
In the night time, the photovoltaic power station does not generate power, the cable is in a low-voltage state, the cable needs to be protected by anti-theft early warning, and a worker can send a protection command through the mobile terminal to connect the first communication module and the second communication module with the cable; the host and the terminal send polling instructions through cables, and the cables are monitored through the polling instructions; specifically, after a worker sends a defense command through a mobile terminal, the worker controls a first relay and a second relay to be connected, a first communication module is electrically connected with a cable, a second communication module is electrically connected with the cable, the first communication module is in communication connection with the second communication module through the cable, at the moment, the first control module controls the first communication module to send a polling command, namely, the first communication module sends a first carrier signal (comprising a first standard carrier signal and a first self-defined carrier signal) to the second communication module through the cable, the second communication module returns a second carrier signal (comprising a second labeled carrier signal and a second self-defined carrier signal) to the first communication module under the control of the second control module after receiving the first carrier signal, and after receiving the second carrier signal, the first control module judges that the communication between the first communication module and the second communication module is normal, if the cable is normal, controlling the first communication module to repeatedly send the first carrier signal after a certain time interval; if the first communication module does not receive the second carrier signal sent by the second communication module within the preset time after the first carrier signal is sent, the first control module judges that the communication between the first communication module and the second communication module is abnormal, namely, the cable is stolen, then stolen information is sent to the mobile terminal and the alarm module, the alarm module sends out alarm sound or an alarm indicator lamp to prompt workers around the inverter, and after the alarm module sends the alarm sound or the alarm indicator lamp to the mobile terminal, the workers holding the mobile terminal can be timely connected to the stolen situation of the cable, so that effective remedial measures are taken.
This cable theftproof early warning device can regard as the execution carrier of circuit structure, for example, configures each module or unit into the components and parts of product, configures each module or the connection between the unit into the definite connection relation between the components and parts of product, and the components and parts of accessible product carry out the collection, handle and the output of signal, realize the utility model aims to solve the technical problem.
It should be noted that, the utility model provides a control module can adopt various units that can realize adjustable signal, for example various singlechips, a microcontroller, DSP (digital signal processor), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array promptly), host computer or Central Processing Unit (CPU, Central Processing Unit), in this embodiment, first control module and second control module can adopt the singlechip, can realize various control function through programming the singlechip, for example in this embodiment, realize carrier signal and voltage signal's collection, Processing and demodulation function, control module has small, the integrated level is high and the advantage of strong reliability.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a photovoltaic power plant cable theftproof early warning device which characterized in that includes:
the photovoltaic power station comprises a host and a control module, wherein the host is arranged at one end of a cable between an inverter and a combiner box of the photovoltaic power station and comprises a first power supply module, a first communication module, an alarm module, a first control module and a wireless transmission module;
the terminal is arranged between the inverter of the photovoltaic power station and the combiner box and comprises a second power supply module, a second communication module and a second control module, the second communication module is electrically connected with the cable, the second power supply module is electrically connected with the second control module to supply power to the terminal, and the second control module is electrically connected with the second communication module.
2. The photovoltaic power station cable anti-theft early warning device according to claim 1, wherein the first communication module is provided with a first standard interface for sending a first standard carrier signal to the second communication module, the second communication module is provided with a second standard interface for sending a second standard carrier signal to the first communication module after receiving the first standard carrier signal, and the first standard interface and the second standard interface are in communication connection through the cable.
3. The photovoltaic power station cable anti-theft early warning device according to claim 2, wherein the first communication module is further provided with a first custom interface for sending a first custom carrier signal to the second communication module, the second communication module is further provided with a second custom interface for sending a second custom carrier signal to the first communication module after receiving the first custom carrier signal, and the first custom interface and the second custom interface are in communication connection through the cable.
4. The photovoltaic power station cable anti-theft early warning device according to claim 1, wherein the host further comprises a first sampling module electrically connected with the cable and the first control module for converting a voltage signal of the cable into a digital signal and transmitting the digital signal to the first control module;
the terminal also comprises a second sampling module which is electrically connected with the cable and the second control module and is used for converting the voltage signal of the cable into a digital signal.
5. The photovoltaic power station cable anti-theft early warning device according to claim 1, wherein a first relay is arranged between the first communication module and the cable, and a second relay is arranged between the second communication module and the cable;
wherein the first relay and the second relay are both remotely connected with the mobile terminal.
6. The photovoltaic power plant cable theftproof early warning device of claim 1, characterized in that, the host computer sets up in the one end that the cable is close to the inverter, and the terminal station sets up in the one end that the cable is close to the collection flow box.
7. The photovoltaic power station cable anti-theft early warning device according to claim 1, wherein the first power supply module comprises a first energy storage battery and a first charging circuit for charging the first energy storage battery, the first charging circuit is provided with an input end for external power connection, an output end of the first charging circuit is electrically connected with the input end of the first energy storage battery, and an output end of the first energy storage battery is electrically connected with the first control module;
the second power supply module further comprises a second energy storage battery and a second charging circuit, the second charging circuit is used for charging the second energy storage battery, the second charging circuit is provided with an input end used for external power connection, the output end of the second charging circuit is electrically connected with the input end of the second energy storage battery, and the second energy storage battery is electrically connected with the second control module.
8. The photovoltaic power station cable anti-theft early warning device according to claim 7, wherein the first power supply module further comprises a first voltage reduction circuit for converting the voltage of the cable, an input end of the first voltage reduction circuit is electrically connected with the cable, and an output end of the first voltage reduction circuit is electrically connected with an input end of the first charging circuit;
the second power supply module comprises a second voltage reduction circuit for converting the voltage of the cable, the input end of the second voltage reduction circuit is electrically connected with the cable, and the output end of the second voltage reduction circuit is electrically connected with the input end of the second charging circuit.
9. The photovoltaic power station cable anti-theft early warning device according to claim 8, wherein the input end and the output end of the first voltage reduction circuit are respectively provided with a first protection switch for controlling circuit connection; and the input end and the output end of the second voltage reduction circuit are respectively provided with a second protection switch for controlling circuit connection.
10. The photovoltaic power plant cable anti-theft early warning device according to claim 9, characterized in that the first protection switch is provided with a first absorption circuit for absorbing peak voltage; the second protection switch is provided with a second absorption circuit for absorbing the peak voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220587849.3U CN217157416U (en) | 2022-03-17 | 2022-03-17 | Photovoltaic power plant cable theftproof early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220587849.3U CN217157416U (en) | 2022-03-17 | 2022-03-17 | Photovoltaic power plant cable theftproof early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217157416U true CN217157416U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220587849.3U Active CN217157416U (en) | 2022-03-17 | 2022-03-17 | Photovoltaic power plant cable theftproof early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217157416U (en) |
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2022
- 2022-03-17 CN CN202220587849.3U patent/CN217157416U/en active Active
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