CN111405487B - Communication device, system, method and communication box - Google Patents
Communication device, system, method and communication box Download PDFInfo
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- CN111405487B CN111405487B CN202010206158.XA CN202010206158A CN111405487B CN 111405487 B CN111405487 B CN 111405487B CN 202010206158 A CN202010206158 A CN 202010206158A CN 111405487 B CN111405487 B CN 111405487B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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Abstract
The invention provides a communication device, a system, a method and a communication box, wherein the device comprises: the communication units are connected in a first communication mode and used for mutually verifying and analyzing sensor data; each communication unit at least comprises a communication main box and a communication auxiliary box which are connected in the first communication mode; each communication master box is provided with various types of sensors and is used for collecting different types of sensor data, sharing the different types of sensor data to the communication slave boxes in the same communication unit and sharing the different types of sensor data to the communication master boxes in different communication units. Through the scheme, the monitoring requirement of the photovoltaic power station on the external environment at the present stage can be met by a small number of sensors, and particularly, the communication interconnection in the communication device is realized, and the sharing of sensing information is realized.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a communication device, a system, a method and a communication box.
Background
Photovoltaic power plant is because the area is big, and the signal receives external factor interference such as high voltage circuit, the topography of undulation, bad weather in the power plant easily, and the communication structural style of photovoltaic communication case among the prior art and controller is single moreover, leads to the communication unstability.
When carrying out the surrounding environment monitoring at photovoltaic power plant, owing to monitor multiple environmental factor, for example weather, wind direction, longitude and latitude, temperature and sunshine etc. consequently need use the monitoring that multiple corresponding sensor could realize multiple environmental factor on the photovoltaic communication case, lead to monitoring cost greatly increased.
Therefore, how to improve the communication stability of the photovoltaic communication box and reduce the monitoring cost is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides a communication device, a system, a method and a communication box, aiming at solving the problems of improving the stability of a photovoltaic communication box and reducing the cost. The communication device, the communication system and the communication method can meet the communication monitoring requirement of the photovoltaic power station at the present stage, particularly the communication interconnection among the communication devices and the realization of the sharing of sensing information.
In order to achieve the above object of the present invention, the present invention is achieved by the following techniques:
the invention provides a communication device, comprising:
the communication units are connected in a first communication mode and used for mutually verifying and analyzing sensor data; when the error value of the sensor data exceeds the preset error value, judging that the sensor data is an abnormal value; when the sensor data is an abnormal value, discarding the abnormal value, and transmitting a normal value of the sensor data of another communication unit connected in a first communication mode;
each communication unit at least comprises a communication main box and a communication auxiliary box which are connected in the first communication mode; each communication master box is provided with various types of sensors and is used for collecting different types of sensor data, sharing the different types of sensor data to the communication slave boxes in the same communication unit and sharing the different types of sensor data to the communication master boxes in different communication units.
Further, the communication master box or the communication slave box is communicated with the cloud server through a second communication mode and used for sending the collected sensor data to the cloud server, and the cloud server calculates the optimal angle of the assembly, where the photovoltaic tracker is located, capable of generating the maximum electric energy at the current time point according to the collected sensor data and sends the optimal angle to the communication master box or the communication slave box to control the photovoltaic tracker to rotate.
Further, at least one of the communication slave boxes is provided with a base sensor for collecting sensor data of a corresponding type, wherein the base sensor comprises a rain and snow sensor or a wind direction and wind speed sensor or a flood sensor or an irradiation sensor.
Further, the communication master box or the communication slave box comprises: the first control unit and the second control unit are respectively connected with a first communication module; the first communication module is connected with the first control unit and is used for communicating with the photovoltaic tracker to control the tracking angle of the photovoltaic tracker; and the first communication module is connected with the second control unit and is used for communicating with the other communication main box or the other communication auxiliary box so as to transmit different types of sensor data.
Further, the communication master box or the communication slave box further comprises: the second communication module is connected with the first control unit and is used for communicating with the cloud server in the second communication mode; a third communication module: and the first control unit is connected with the communication device and is used for backing up the sensor data and updating the time of the communication device in real time.
Further, the communication master box or the communication slave box comprises: the power supply circuit is connected with the independent assembly, and supplies power to the main board power supply module and the lithium battery through voltage stabilization and reduction of the photovoltaic customized DC/DC module; and/or; and the power circuit connected with the box type transformer is used for supplying power in a voltage reduction mode through the switching power supply and is used for standby power supply.
Further, the communication master box or the communication slave box comprises: the user interface circuit is connected with the first control unit and is used for providing a port for a user to acquire information; and the sensor circuit is connected with the first control unit and is used for acquiring sensor data.
The invention also provides a communication system, which comprises the communication device, the photovoltaic tracker and the cloud server; the communication device is connected with the cloud server through the second communication mode and is used for communicating with the cloud server; the cloud server is communicated with the communication main box or the communication slave box through the second communication mode, and is used for calculating the optimal angle of the assembly, at which the photovoltaic tracker is located, capable of generating the maximum electric energy at the current time point according to the collected sensor data, and sending the optimal angle to the communication main box or the communication slave box to control the photovoltaic tracker to rotate; the photovoltaic tracker is connected with the communication device through a first communication mode and used for obtaining the optimal angle of the assembly.
The invention also provides a communication method, which comprises the following steps:
the communication device transmits the sensor data to the cloud server through the second communication mode; the cloud server calculates the optimal angle of the assembly, which can generate the maximum electric energy at the current time point, of the position of the photovoltaic tracker according to the sensor data, and transmits the optimal angle of the assembly to the communication device in the second communication mode; the communication device transmits the optimal angle of the component to the photovoltaic tracker through the first communication mode so as to control the tracking angle.
Further, backup of the sensor data is performed between each communication main box.
The invention also provides a communication box applied to the communication device.
The communication device, the system, the method and the communication box provided by the invention at least have the following beneficial effects:
1) the communication device of the invention perfects the sensor part, all types of sensors are arranged on the communication main box, the basic sensor is arranged on the communication auxiliary box, the data of the sensors can be shared in the communication device, the aim of saving the sensors is achieved, external environment monitoring is provided for the controller through all types of sensors, the generated energy of the tracking system is increased, and meanwhile, the tracking system is ensured to work in a safe state under all climate regulation conditions.
2) In the aspect of a communication structure, various communication modes such as an LORA communication mode are adopted, when the communication device carries out communication, the communication device carries out communication in different modules, the communication structure is changed from the communication between a single communication box and a controller at present into the communication between an upper layer and a background, a middle layer is used for the communication between the communication boxes, and a lower layer is communicated with the controller, so that the redundant effect of the communication is achieved, and the cost of the sensor is saved.
3) The power supply mode of an independent component is adopted, a lithium battery and a charging and discharging circuit are configured, 24-hour uninterrupted communication is realized, 220V alternating current is used as assistance, and the requirements of individual projects are met.
4) Due to the change of the power supply mode, the installation position of the communication box is not limited to be close to the box-type transformer any more, and the communication box can be installed at the center of the photovoltaic power station subarray, so that the optimal communication effect of the communication device is achieved, and the cost of a power supply cable is saved.
5) The communication main box and the communication slave box are internally provided with two control units, namely, the double-MCU works to support the communication channel and the sensor channel to be separated, more communication channels and signal channels of sensors can be provided, the single communication box and 300 sets of controllers can be supported to communicate, and meanwhile, the multiple sensors provide technologies, so that the mechanical structure of a power station can be protected in an all-round way.
6) In the aspect of software, the optimal angle of the assembly is calculated through an algorithm, specifically, the optimal angle of the assembly, which can generate the maximum electric energy at the time point, at the geographic position is calculated through the algorithm on the basis of information of an external sensor, and the optimal angle of the assembly is sent to a communication box for analysis and optimization and then distributed to control boxes of various subarrays in a power station to control various tracking systems to operate to the optimal angle, so that the purpose of improving the generated energy is achieved.
Drawings
The above features, technical features, advantages and modes of realisation of a communication device, system, method and communication box will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.
FIG. 1 is a schematic diagram of a communication device according to the present invention;
FIG. 2 is a schematic diagram of a main circuit of a communication device according to the present invention;
fig. 3 is a schematic structural diagram of a second communication module of the communication device according to the present invention;
fig. 4 is a schematic structural diagram of a third communication module of the communication device according to the present invention;
FIG. 5 is a schematic diagram of a sensor interface digital circuit of a communication device according to the present invention;
FIG. 6 is a schematic diagram of a sensor interface digital circuit of a communication device according to the present invention;
FIG. 7 is a schematic diagram of a communication system according to the present invention;
fig. 8 is a flow chart illustrating a communication method according to the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
In one embodiment of the present invention, a communication device includes:
the communication units are connected in a first communication mode and used for mutually verifying and analyzing sensor data; each communication unit at least comprises a communication main box and a communication auxiliary box which are connected in the first communication mode; each communication master box is provided with various types of sensors and is used for collecting different types of sensor data, sharing the different types of sensor data to the communication slave boxes in the same communication unit and sharing the different types of sensor data to the communication master boxes in different communication units.
Illustratively, as shown in fig. 1, in the first communication unit, the communication box No. 1 is a communication master box a of the first communication unit, and the communication boxes No. 3, 4 and 5 are communication slave boxes of the communication box No. 1. In the second communication unit, the No. 2 communication box is the A communication master box of the first communication unit, and the No. 6, No. 7 and No. 8 communication boxes are the communication slave boxes of the No. 1 communication box. Meanwhile, the communication device comprises a plurality of communication boxes. All sensors are arranged on the No. 1 and No. 2 communication boxes, and the other communication boxes are not provided with sensors or provided with a basic sensor. No. 1 communication case can give 3, 4, 5 communication cases with sensor data and analytic data real-time transmission through the mode of LORA communication, and No. 2 communication cases can give 6, 7, 8 communication cases with sensor data and analytic data real-time transmission through the mode of LORA communication. Wherein, the LORA communication mode is a first communication mode. The cost of the sensor can be reduced to a great extent through the scheme. Meanwhile, the No. 1 and No. 2 communication boxes are communicated with each other, so that the sensor data and the analysis data can be mutually verified, and communication backup (RPR) is completed.
Optionally, the communication master box or the communication slave box communicates with the cloud server through the second communication mode, and is configured to send the collected sensor data to the cloud server, and the cloud server calculates an optimal angle of the assembly, at which the photovoltaic tracker is located, that can generate the maximum electric energy at the current time point according to the collected sensor data, and sends the optimal angle to the communication master box or the communication slave box to control the photovoltaic tracker to rotate.
Specifically, the structure of the communication device is changed from the communication between a single communication box and a controller at present into the communication between an upper layer and a background (cloud server), a middle layer is used for the communication between the communication boxes, and a lower layer is used for the communication with the controller, so that the communication redundancy effect is achieved, and meanwhile, the cost of a sensor is saved; except that the communication device communicates with the upper background through the LORA communication mode, the communication device also communicates with the lower controller in the LORA communication mode, and meanwhile duplex communication is carried out between adjacent communication main boxes in the LORA communication mode, so that the effect of communication redundancy is achieved, data of the sensor can be shared between the adjacent communication main boxes, and the aim of saving the sensor is achieved. The data of all sensors are gathered and are analyzed by the communication box MCU, the communication data can be uploaded to the cloud, the data of the training machine can be transmitted to the communication device, and the communication device is communicated with the lower end control box to update the optimal angle in real time.
Illustratively, the influence of different angles (near a target angle) of a double-sided component on generated electric energy is recorded by a model machine of a tracking system under different weather conditions (clear, cloudy, rain, snow, sunshine, temperature and the like) at the same longitude and latitude and different time, the optimal angle of the component is calculated, and the information of an external sensor is taken as the basis, wherein the sensor can comprise a rain and snow sensor, a wind and direction anemometer (wind direction and wind direction sensor), a flood sensor, an irradiation sensor (irradiation meter) and a radar level gauge, the rain and snow amount data is obtained through the rain and snow sensor, the wind and direction anemometer obtains the wind and direction anemometer data, the water depth data is obtained through the radar level gauge, and the irradiation amount data is obtained through the irradiation sensor.
Optionally, the communication master box or the communication slave box includes: the first control unit and the second control unit are respectively connected with a first communication module; the first communication module is connected with the first control unit and is used for communicating with the photovoltaic tracker; and the first communication module is connected with the second control unit and is used for communicating with the other communication main box or the other communication auxiliary box so as to transmit different types of sensor data.
The communication master box or the communication slave box further comprises: the second communication module is connected with the first control unit and is used for communicating with the cloud server in the second communication mode; a third communication module: and the first control unit is connected with the communication device and is used for backing up the sensor data and updating the time of the communication device in real time.
The communication master box or the communication slave box comprises: the power supply circuit is connected with the independent assembly, and supplies power to the main board power supply module and the lithium battery through voltage stabilization and reduction of the photovoltaic customized DC/DC module; and/or; and the power circuit connected with the box type transformer is used for supplying power in a voltage reduction mode through the switching power supply and is used for standby power supply.
The communication master box or the communication slave box comprises: the user interface circuit is connected with the first control unit and is used for providing a port for a user to acquire information; and the sensor circuit is connected with the first control unit and is used for acquiring sensor data.
Illustratively, as shown in fig. 2-6, the master circuit of the communication master or slave includes: the two MCU are connected with two LORA module circuits, a power supply circuit, a satellite positioning circuit, a GPRS module circuit, a 4G standard SIM module circuit, a user interface circuit, a sensor interface digital circuit, a sensor interface analog circuit, a wind direction and wind sense interface circuit and an irradiator interface circuit of the main singlechip.
Wherein, the MCU unit: two 4-series STM32F407ZET6 are adopted as a main single chip microcomputer, and data are exchanged between the two MCU units in real time; the first control unit is an MCU1 control unit; the second control unit is an MCU2 control unit.
In addition, the LORA module circuit of the communication master box or the communication slave box includes: the first communication module connected with the first control unit is a LORA1 module; the first communication module connected with the second control unit is a LORA2 module; adopt LORA chip and peripheral circuit, foreign dominant frequency 915MHz and domestic dominant frequency 413MHz, LORA1 module and the communication of alling oneself with the controller, through communication between LORA2 module and the adjacent communication box, the communication main tank or the case from of needing to carry out the communication are based on the same frequency and are communicated.
The second communication module is a GPRS module/4G/SIM card; the third communication module is a GPS + BDS module, also called a satellite positioning circuit, and updates the time of the communication box in real time by adopting a GPS + BDS double-chip redundant backup mode; the user interface circuit may include a USB port, a 485 port, an ethernet port. The communication master box or the communication slave box comprises a sensor interface digital circuit: an SP485 chip is adopted to convert TTL to 485 signals; sensor interface analog circuit: and an SP485 chip is adopted to convert TTL to 485 signals. Through reserving a plurality of types of communication interfaces, the cleaning machine, the header box and the MPPT module can communicate with the site, and more data are collected for analysis.
In addition, the power supply circuit comprises a first channel, an independent component supplies power, the power is stabilized and reduced in voltage through a photovoltaic customized DC/DC module, one part supplies power to the mainboard, and the other part charges the lithium battery for standby; and a second channel: the 220VAC standby power supply from the box transformer substation is supplied by voltage reduction through the switching power supply. The communication device is powered by the independent component, and the lithium battery is charged for standby, the independent component is self-powered to enable the installation position of the communication box not to be limited near the box type transformer any more due to the change of the power supply mode, the communication box can be installed at the center of the photovoltaic power station subarray, on one hand, the optimal communication effect of the subarray is achieved, and on the other hand, the cost of a power supply cable is saved.
The invention provides an embodiment of a communication system, which comprises the communication device, a photovoltaic tracker and a cloud server.
The communication device is connected with the cloud server through the second communication mode and is used for communicating with the cloud server.
The cloud server is communicated with the communication main box or the communication slave box through the second communication mode, and is used for calculating the optimal angle of the assembly, at which the photovoltaic tracker is located, capable of generating the maximum electric energy at the current time point according to the collected sensor data, and sending the optimal angle to the communication main box or the communication slave box to control the photovoltaic tracker to rotate.
The photovoltaic tracker is connected with the communication device through a first communication mode and used for obtaining the optimal angle of the assembly.
For example, as shown in fig. 7, the communication device structure in the communication system is changed from the communication between the current single communication box and the controller to the communication between the upper layer and the background (cloud server), the middle layer is used for the communication between the communication boxes, and the lower layer is used for the communication with the controller, so as to achieve the communication redundancy effect and save the cost of the sensor, wherein the middle layer includes the communication device; except that the communication device communicates with the upper background through the LORA communication mode, also takes the LORA communication mode communication with the lower controller, utilizes the LORA communication mode to carry out duplex communication between the adjacent communication boxes simultaneously, except reaching the redundant effect of communication like this, can also share the data of sensor between the adjacent communication boxes, reach the target of saving the sensor. The data of all sensors are gathered and are analyzed by the communication box MCU, the communication data can be uploaded to the cloud, the data of the training machine can be transmitted to the communication device, and the communication device is communicated with the lower end control box to update the optimal angle in real time.
Specifically, the influence of different angles (near a target angle) of a double-sided component on generated electric energy is recorded by a model machine of a tracking system under different weather conditions (clear, cloudy, rainy, snowy, sunshine, temperature and the like) at the same longitude and latitude and different time, the optimal angle of the component is calculated, and the information of an external sensor is taken as a basis, wherein the sensor can comprise a rain and snow sensor, a wind and direction anemometer (wind direction and wind direction sensor), a flood sensor, an irradiation sensor (irradiation instrument) and a radar level gauge, the rain and snow data are obtained through the rain and snow sensor, the wind and direction anemometer obtains wind and direction anemometer data, the water depth data are obtained through the radar level gauge, and the irradiation data are obtained through the irradiation sensor.
Wherein, the main circuit of communication box among the communication system adopts two 4 series STM32F407ZET6 as main singlechip, and in the aspect of the power supply, the power supply source is independent little subassembly, and the DC/DC module through the photovoltaic customization is stabilized and is stepped down, and partly for the communication box mainboard power supply, another part is through LTC4015 for lithium cell charging. At night and in bad weather, the lithium battery supplies power; an LORA module, a GPRS module, a 4G standard SIM module, a satellite positioning module (such as a GPS + BDS Beidou module) and a 485-to-Ethernet module are integrated on a mainboard, and a 485 port (adopting an isolating chip ADM2582), a USB port and an Ethernet port can be selected as a user port; the related circuits of the sensor simultaneously support a rain and snow sensor, a wind direction and wind sense sensor, an irradiator sensor, a radar water level gauge sensor and the like.
According to the scheme, the sensor is added into the communication device, and only a wind direction and wind speed sensor is normally allocated in a standard mode, so that the sensor data is perfected; meanwhile, the optimal angle of the assembly capable of generating the maximum electric energy at the geographic position at the time point is calculated by the aid of an AI algorithm through the training machine, and the optimal angle is sent to the communication box for analysis and optimization and then distributed to the control box of each subarray (communication box) in the power station to control each tracking system (photovoltaic tracker) to operate to the optimal angle, so that the purpose of improving the generated energy is achieved.
In another embodiment, as shown in fig. 8, a communication method includes:
s810, the communication device transmits the sensor data to the cloud server through the second communication mode.
S820, the cloud server calculates the optimal angle of the assembly, which can generate the maximum electric energy at the current time point, of the position of the photovoltaic tracker according to the sensor data, and transmits the optimal angle of the assembly to the communication device through the second communication mode.
S830 the communication device transmits the optimal angle of the component to the photovoltaic tracker through the first communication mode to control the tracking angle.
Specifically, after the communication device acquires sensor data, the communication device is connected with the cloud server through the second communication mode to transmit the sensor data to the cloud server. The training machine in the cloud service calculates the optimal angle of the component, at which the photovoltaic tracker is located, capable of generating the maximum electric energy at the current time point through an algorithm, and sends the optimal angle to the communication main box or the communication auxiliary box to control the photovoltaic tracker to rotate, and then the photovoltaic tracker is connected with the communication device through a first communication mode to obtain the optimal angle of the component.
Furthermore, the communication units are connected in a first communication mode, and mutual verification and analysis are carried out on the sensor data; when the error value of the sensor data exceeds the preset error value, the sensor data is an abnormal value; when the sensor data is an abnormal value, the abnormal value is discarded, and a normal value of the sensor data is transmitted.
Specifically, the photovoltaic power station is provided with a plurality of communication boxes No. 1 and No. 2, the communication boxes No. 1 and No. 2 are provided with all types of sensors, in a mutual sensor checking program, data of each type of sensor can form a curve, when the value of the sensor exceeds +/-2% of error, the abnormal value is judged, the abnormal value is discarded in a processing mode, and communication is transmitted to the normal value of the sensor of the other communication box.
Further, backup of the sensor data is performed between each communication main box.
Specifically, the communication master box and the corresponding communication slave box communicate in the first communication mode, the sensor data and the analysis data are verified mutually, communication backup (RPR) is completed, and the stability of communication is greatly guaranteed through the scheme.
The invention also provides a communication box which can specifically comprise a communication main box or a communication slave box, wherein each communication main box is provided with various types of sensors and is used for collecting different types of sensor data, sharing the different types of sensor data to the communication slave box in the same communication unit and sharing the different types of sensor data to the communication main boxes in different communication units.
Optionally, the communication master box or the communication slave box communicates with the cloud server through the second communication mode, and is configured to send the collected sensor data to the cloud server, and the cloud server calculates an optimal angle of the assembly, at which the photovoltaic tracker is located, that can generate the maximum electric energy at the current time point according to the collected sensor data, and sends the optimal angle to the communication master box or the communication slave box to control the photovoltaic tracker to rotate.
Optionally, the communication master box or the communication slave box includes: the first control unit and the second control unit are respectively connected with a first communication module; the first communication module is connected with the first control unit and is used for communicating with the photovoltaic tracker; and the first communication module is connected with the second control unit and is used for communicating with the other communication main box or the other communication auxiliary box so as to transmit different types of sensor data.
The communication master box or the communication slave box further comprises: the second communication module is connected with the first control unit and is used for communicating with the cloud server in the second communication mode; a third communication module: and the first control unit is connected with the communication device and is used for backing up the sensor data and updating the time of the communication device in real time.
The communication master box or the communication slave box comprises: the power supply circuit is connected with the independent assembly, and supplies power to the main board power supply module and the lithium battery through voltage stabilization and reduction of the photovoltaic customized DC/DC module; and/or; and the power circuit connected with the box type transformer is used for supplying power in a voltage reduction mode through the switching power supply and is used for standby power supply.
The communication master box or the communication slave box comprises: the user interface circuit is connected with the first control unit and is used for providing a port for a user to acquire information; and the sensor circuit is connected with the first control unit and is used for acquiring sensor data. The sensor circuit includes: the sensor interface digital circuit is connected with the first control unit and used for converting the level signal into a communication signal of a 485 bus; and the sensor interface analog circuit is connected with the first control unit and is used for converting the measuring current of the sensor into a measuring value signal.
Illustratively, as shown in fig. 2-6, the master circuit of the communication master or slave includes: the two MCU are connected with two LORA module circuits, a power supply circuit, a satellite positioning circuit, a GPRS module circuit, a 4G standard SIM module circuit, a user interface circuit, a sensor interface digital circuit, a sensor interface analog circuit, a wind direction and wind sense interface circuit and an irradiator interface circuit of the main singlechip.
Wherein, the MCU unit: two 4-series STM32F407ZET6 are adopted as a main single chip microcomputer, and data are exchanged between the two MCU units in real time; the first control unit is an MCU1 control unit; the second control unit is an MCU2 control unit.
In addition, the LORA module circuit of the communication master box or the communication slave box includes: the first communication module connected with the first control unit is a LORA1 module; the first communication module connected with the second control unit is a LORA2 module; adopt LORA chip and peripheral circuit, foreign dominant frequency 915MHz and domestic dominant frequency 413MHz, LORA1 module and the communication of alling oneself with the controller, through communication between LORA2 module and the adjacent communication box, the communication main tank or the case from of needing to carry out the communication are based on the same frequency and are communicated.
The second communication module is a GPRS module/4G/SIM card; the third communication module is a GPS + BDS module, also called a satellite positioning circuit, and updates the time of the communication box in real time by adopting a GPS + BDS double-chip redundant backup mode; the user interface circuit may include a USB port, a 485 port, an ethernet port. The communication master box or the communication slave box comprises a sensor interface digital circuit: an SP485 chip is adopted to convert TTL to 485 signals; sensor interface analog circuit: and an SP485 chip is adopted to convert TTL to 485 signals. Through reserving a plurality of types of communication interfaces, the cleaning machine, the header box and the MPPT module can communicate with the site, and more data are collected for analysis.
Specifically, the satellite positioning circuit may include an Air530 chip, a GPS _ ANT pin of the Air530 chip is connected to an SMA interface and is grounded through a P1, a GND pin is directly grounded, a VCC pin is connected in parallel to a VBACKUP pin, and is connected to a GPS1_3V3 through two capacitors connected in parallel, an RXD pin is connected to a GPS _ RXD1, and a TXD pin is connected to a GPS _ TXD 1.
The GPS circuit can comprise a SIM chip, wherein a VCC pin of the SIM chip is connected with a SIM _ VCC end and is connected with a capacitor in parallel to be grounded, a RST pin is connected with a SIM _ RST _ R27 end through a resistor, a CLK pin is connected with a SIM _ CLK _ R29 end through a resistor, an I/O pin is connected with a SIM _ DATA end through a resistor, and the GPS circuit also comprises two grounding pins.
The sensor digital circuit comprises an SP485 chip, wherein pins 2 and 3 of the SP485 chip are respectively a receiver output enable and a driver output enable, the receiver output enable and the driver output enable are connected in parallel through a resistor, and pins 1 and 4 are respectively a receiving end and a sending end of a TTL level and are respectively connected with a resistor in series. The pull-up resistor R72 connected to the pin 6 and the pull-up resistor R77 connected to the pin 7 are used for ensuring that the unconnected SP485 chip is in an idle state, and network failure protection is provided so as to improve the reliability of the node and the network. A pin 6 of the SP485 chip is connected with a resistor R73 in series and is connected with a pin 3 of a Header3 needle seat, and a pull-up voltage-stabilizing diode D12 is further arranged between the resistor R73 and the pin 3; pin 7 is connected with pin 2 of Header3 in series a resistance R75, still include a pull-up zener diode D13 between resistance R75 and the pin 2, through a ground resistance R77 ground connection between pin 7 and the resistance R75, pin 1 ground connection of Header3 needle file.
The sensor analog circuit adopts industry 0 ~ 20mA circuit, carries OUT the measurement current conversion of sensor and becomes measured value signal, the measurement current flows IN from ADC1_ IN end of sensor analog circuit, flows OUT from ADC1_ OUT end, ADC1_ IN end ADC1_ OUT end includes a resistance of establishing ties, connect a ground capacitor IN parallel between resistance and ADC1_ IN end to and through VCC3.3_ MCU that resistance and inverter are established ties, through a resistance ground before ADC1_ OUT end.
In addition, the power supply circuit comprises a first channel, an independent component supplies power, the power is stabilized and reduced in voltage through a photovoltaic customized DC/DC module, one part supplies power to the mainboard, and the other part charges the lithium battery for standby; and a second channel: the 220VAC standby power supply from the box transformer substation is supplied by voltage reduction through the switching power supply. The communication device is powered by the independent assembly, and the lithium battery is charged for standby, the independent assembly enables the installation position of the communication box not to be limited near the box-type transformer any more due to the change of the power supply mode, the communication box can be installed at the center of the subarray, on one hand, the optimal communication effect of the subarray is achieved, on the other hand, the cost of the power supply cable is saved, and the subarray is the communication box.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of program modules is illustrated, and in practical applications, the above-described distribution of functions may be performed by different program modules, that is, the internal structure of the apparatus may be divided into different program units or modules to perform all or part of the above-described functions. Each program module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one processing unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software program unit. In addition, the specific names of the program modules are only used for distinguishing the program modules from one another, and are not used for limiting the protection scope of the application.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely exemplary, and the division of the modules or units is merely an example of a logical division, and there may be other divisions when the actual implementation is performed, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (11)
1. A communication device, comprising:
the communication units are connected in a first communication mode and used for mutually verifying and analyzing sensor data;
when the error value of the sensor data exceeds the preset error value, judging that the sensor data is an abnormal value;
when the sensor data is an abnormal value, discarding the abnormal value, and transmitting a normal value of the sensor data of another communication unit connected in a first communication mode;
each communication unit at least comprises a communication main box and a communication auxiliary box which are connected in the first communication mode;
each communication master box is provided with various types of sensors and is used for collecting different types of sensor data, sharing the different types of sensor data to the communication slave boxes in the same communication unit and sharing the different types of sensor data to the communication master boxes in different communication units.
2. A communication device according to claim 1, comprising:
the communication main box or the communication slave box is communicated with the cloud server through a second communication mode and used for sending the collected sensor data to the cloud server, and the cloud server calculates the optimal angle of the assembly, where the photovoltaic tracker is located, capable of generating the maximum electric energy at the current time point according to the collected sensor data and sends the optimal angle to the communication main box or the communication slave box to control the photovoltaic tracker to rotate.
3. A communication device according to claim 1, comprising:
at least one of the communication slave boxes is provided with a base sensor for collecting sensor data of a corresponding type, wherein the base sensor comprises a rain and snow sensor or a wind direction and speed sensor or a flood sensor or an irradiation sensor.
4. A communication device according to claim 2, wherein the communication master or slave comprises:
the first control unit and the second control unit are respectively connected with a first communication module;
the first communication module is connected with the first control unit and is used for communicating with the photovoltaic tracker to control the tracking angle of the photovoltaic tracker; and the first communication module is connected with the second control unit and is used for communicating with the other communication main box or the other communication auxiliary box so as to transmit different types of sensor data.
5. The communication device according to claim 4, wherein the communication master box or the communication slave box further comprises:
the second communication module is connected with the first control unit and is used for communicating with the cloud server in the second communication mode;
a third communication module: and the first control unit is connected with the communication device and is used for backing up the sensor data and updating the time of the communication device in real time.
6. A communication device according to claim 5, wherein the communication master or slave comprises:
the power supply circuit is connected with the independent assembly, and supplies power to the main board power supply module and the lithium battery through voltage stabilization and reduction of the photovoltaic customized DC/DC module;
and/or;
and the power circuit connected with the box type transformer is used for supplying power in a voltage reduction mode through the switching power supply and is used for standby power supply.
7. The communication device according to claim 6, wherein the communication master or slave comprises:
the user interface circuit is connected with the first control unit and is used for providing a port for a user to acquire information;
and the sensor circuit is connected with the first control unit and is used for acquiring sensor data.
8. A communication system comprising the communication device, the photovoltaic tracker, and the cloud server according to any one of claims 1 to 7;
the communication device is connected with the cloud server through the second communication mode and is used for communicating with the cloud server;
the cloud server is communicated with the communication main box or the communication slave box through the second communication mode, calculates the optimal angle of the assembly, which can generate the maximum electric energy at the current time point, of the position of the photovoltaic tracker according to the collected sensor data, and sends the optimal angle to the communication main box or the communication slave box to control the photovoltaic tracker to rotate;
the photovoltaic tracker is connected with the communication device through a first communication mode and used for enabling the photovoltaic module to be located at the optimal angle of the module.
9. A communication method using the communication system of claim 8, comprising:
the communication device transmits the sensor data to the cloud server through the second communication mode;
the cloud server calculates the optimal angle of the assembly, which can generate the maximum electric energy at the current time point, of the position of the photovoltaic tracker according to the sensor data, and transmits the optimal angle of the assembly to the communication device in the second communication mode;
the communication device transmits the optimal angle of the component to the photovoltaic tracker through the first communication mode so as to control the tracking angle.
10. The communication method according to claim 9, comprising: and backing up the sensor data among the communication main boxes.
11. A communication box, which is applied to the communication device as claimed in any one of claims 1 to 7.
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| CN202010206158.XA CN111405487B (en) | 2020-03-23 | 2020-03-23 | Communication device, system, method and communication box |
| PCT/CN2021/081198 WO2021190367A1 (en) | 2020-03-23 | 2021-03-17 | Communication apparatus, system and method, and communication box |
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| CN202010206158.XA CN111405487B (en) | 2020-03-23 | 2020-03-23 | Communication device, system, method and communication box |
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| CN111405487B (en) * | 2020-03-23 | 2020-12-15 | 江苏中信博新能源科技股份有限公司 | Communication device, system, method and communication box |
| CN113189914A (en) * | 2021-05-14 | 2021-07-30 | 江苏中信博新能源科技股份有限公司 | Photovoltaic support control method and system |
| CN117241241B (en) * | 2023-11-13 | 2024-01-19 | 武汉本物科技股份有限公司 | Combined communication method and device of solar heat storage heating system and electronic equipment |
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| KR100858997B1 (en) * | 2003-06-30 | 2008-09-18 | 피니사 코포레이숀 | Propagation Of Signals Between Devices For Triggering Capture Of Network Data |
| CN101825892A (en) * | 2010-04-26 | 2010-09-08 | 江苏爱康太阳能科技有限公司 | Centralized monitoring system for solar photovoltaic power generation tracking system |
| CN202486337U (en) * | 2011-12-20 | 2012-10-10 | 龙源（北京）太阳能技术有限公司 | Meteorology data acquisition system |
| US10455410B2 (en) * | 2016-06-03 | 2019-10-22 | At&T Mobility Ii Llc | Sensor-triggered software defined device |
| CN106230681B (en) * | 2016-07-12 | 2018-11-16 | 上海交通大学 | A kind of communication and synchronization system for Complex Power electronics distributed AC servo system |
| CN106410957B (en) * | 2016-11-09 | 2019-03-19 | 江苏中信博新能源科技股份有限公司 | A kind of tracking and controlling method and system of photovoltaic plant |
| CN207184418U (en) * | 2017-09-20 | 2018-04-03 | 广西申能态科技发展有限公司 | A kind of photovoltaic array conflux box of LoRA spread spectrum communications |
| CN109743365B (en) * | 2018-12-20 | 2022-03-15 | 国网北京市电力公司 | Method, device and system for monitoring power transmission line |
| CN111405487B (en) * | 2020-03-23 | 2020-12-15 | 江苏中信博新能源科技股份有限公司 | Communication device, system, method and communication box |
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| CN111405487A (en) | 2020-07-10 |
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