CN112616121B - Method and device for transmitting monitoring data of outlet pressure plate - Google Patents
Method and device for transmitting monitoring data of outlet pressure plate Download PDFInfo
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Abstract
The application discloses a method and a device for transmitting monitoring data of an outlet pressure plate. Wherein, the method comprises the following steps: dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for acquiring the position information of an outlet pressure plate; dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups; and respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal. The method and the device solve the technical problem that when the outlet pressing plate on the relay protection screen cabinet is monitored in a radio frequency communication mode, resources are occupied by data in a radio frequency communication network in a non-sequential sending mode, and data are lost due to signal collision easily.
Description
Technical Field
The application relates to the field of relay protection, in particular to a method and a device for transmitting monitoring data of an outlet pressing plate.
Background
An outlet pressing plate on the relay protection screen cabinet is an obvious electrical breaking point on a relay protection outlet loop, and a power transformation operator changes the operation mode of relay protection by switching in and out the outlet pressing plate so as to meet the operation requirement of a power grid mode and provide a convenient maintenance means for maintainers. The number of the outlet pressing plates is large, the number of the outlet pressing plates of a transformer substation with 220kV voltage class is more than 300, and when the transformer substation is in actual operation, if the transformer substation is in fault and miss throw, the protection is easy to be refused to operate or malfunction, and the safe operation of a power grid is seriously threatened.
At present, the operation and maintenance inspection of an outlet pressing plate mainly depends on manual inspection, but along with the increasing of the scale of a power grid, the more complex the operation characteristic, the higher and higher requirements on safe and stable operation and power supply reliability of the power grid, the operation and maintenance strategy of the pressing plate by manual inspection cannot completely meet the requirements on power supply safety, stability and reliability of the power grid. Accordingly, the construction of an online outlet platen monitoring system is receiving increasing attention.
At present, the construction of an outlet pressing plate on-line monitoring system is still in a starting stage, the outlet pressing plate monitoring system collects outlet pressing plate position information by installing a pressing plate position sensor, and then the outlet pressing plate originally in a monitoring blind spot is brought into the monitoring system through information transmission and data processing, so that the state of the outlet pressing plate is monitored on line in real time. The existing monitoring system schemes can be divided into two types from the communication mode: a cable communication mode monitoring system and a radio frequency communication mode monitoring system.
The cable communication mode monitoring system is relatively conservative in technology, as the traditional technology, the cable communication mode is widely and mature applied to the substation monitoring system, but the following obvious defects exist in the application of the outlet pressing plate monitoring:
1) the system construction engineering quantity is large. When a cable communication mode is used for system construction, each outlet pressing plate position sensor needs to lay a cable, about 300 outlet pressing plates exist in a transformer substation with 220kV voltage level, the number of outlet pressing plates in the transformer substation with 750kV level even exceeds 2000, and a large amount of wires are laid to cause large workload and long construction period.
2) Intrusive installations affect the normal operation of the equipment. The press plate position sensor adopts an intrusive installation mode, cables are laid in the protection screen cabinet, so that power failure of related protection equipment is caused, normal operation of a transformer substation is influenced, and construction conditions are severe.
3) The maintenance difficulty is high. Due to the defects of the cable communication mode, when the cable breaks down, a string of sensors breaks down in communication, and the operation and maintenance difficulty is improved.
The technology of a radio frequency communication mode monitoring system is novel, and with the rapid development of the technology of the internet of things, the technology of the internet of things such as micropower radio frequency communication, high-energy lithium batteries and non-electric quantity sensing is widely applied to transformer substations. Compared with a cable communication mode system, the pressure plate position sensor in the radio frequency communication mode system is powered by a high-energy lithium battery, and each sensor works independently, so that a large amount of cable laying work is avoided; the wireless pressure plate position sensor uses 433MHz radio frequency to carry out networking communication, and when a certain node in the system is damaged, the operation of other nodes is not influenced; the pressure plate position sensor is installed in a non-invasive mode and fixed below an outlet pressure plate of the relay protection screen cabinet in a physical nesting mode, installation is convenient, normal operation of equipment is not affected, and power failure operation is not needed. However, a large number of sensors transmit data through radio frequency networking, and if a communication mechanism is not designed, resources are seized by data sent out in a radio frequency communication network in a non-sequential manner, so that data loss caused by signal collision is easily caused.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a method and a device for transmitting monitoring data of an outlet pressure plate, which are used for at least solving the technical problem that when the outlet pressure plate on a relay protection screen cabinet is monitored in a radio frequency communication mode, resources are seized by data in a radio frequency communication network in a non-sequential sending mode, and data loss is easily caused by signal collision.
According to an aspect of the embodiments of the present application, there is provided a method for transmitting monitoring data of an outlet platen, including: dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for acquiring the position information of an outlet pressure plate; dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups; and respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal.
Optionally, after dividing the platen position sensors located in the same frequency band into a plurality of groups, the method further includes: numbering the platen position sensors in each group respectively; and taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor.
Optionally, the sending the data collected by the pressure plate position sensors in each group to a data receiving terminal respectively includes: and sequentially sending the data acquired by the pressure plate position sensor to a data receiving terminal according to the identification, wherein each group corresponds to one data receiving terminal.
Optionally, sequentially sending data collected by the pressing plate position sensor to a data receiving terminal according to the identifier, including: sending a reference clock request to a data receiving terminal, wherein the data receiving terminal sends a reference clock to the pressure plate position sensor after confirming that the pressure plate position sensor is legal; after a reference clock is obtained, calculating the transmission time of the data transmitted by the pressure plate position sensor according to the identification; and sending the data to the data receiving terminal at the transmission moment.
Optionally, calculating a transmission time of the data transmitted by the platen position sensor according to the identifier includes: determining the transmission interval of the data transmitted by the pressure plate position sensor according to the capacity of the pressure plate position sensor and the transmission period of the data transmitted by the pressure plate position sensor; and calculating the transmission time of the data transmitted by the pressure plate position sensor according to the transmission interval, the identification and the starting time of the transmission period.
Optionally, sending data to the data receiving terminal at the transmission time includes: if the data is not the displacement data, continuously transmitting the data for a first preset time according to a preset time interval during data transmission, wherein the displacement data are data with changed data bits; and if the data is the displacement data, continuously transmitting the data for a second preset time according to a preset time interval when the data is transmitted, wherein the second preset time is greater than the first preset time, and the product of the second preset time and the preset time interval is less than the transmission interval.
According to another aspect of the embodiments of the present application, there is also provided a transmission device for monitoring data of an outlet platen, including: the first dividing module is used for dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of the radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for acquiring the position information of the outlet pressure plate; the second dividing module is used for dividing the pressure plate position sensors in the same frequency band into a plurality of groups; and the sending module is used for respectively sending the data collected by the pressure plate position sensors in each group to the data receiving terminal.
Optionally, the apparatus further comprises: the coding module is used for numbering the pressure plate position sensors in each group after dividing the pressure plate position sensors in the same frequency band into a plurality of groups; and taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor.
Optionally, the sending module is configured to send data collected by the pressure plate position sensor to the data receiving terminals in sequence according to the identifier, where each group corresponds to one data receiving terminal.
According to still another aspect of the embodiments of the present application, there is provided a nonvolatile storage medium, where the nonvolatile storage medium includes a stored program, and the apparatus on which the nonvolatile storage medium is located is controlled to execute the above method for transmitting the monitoring data of the outlet platen when the program is running.
According to yet another aspect of the embodiments of the present application, there is also provided a processor for executing a program stored in a memory, wherein the program when executed performs the above method for transmitting monitoring data of an outlet platen.
In the embodiment of the application, the pressure plate position sensors are divided into pressure plate position sensors positioned in different frequency bands by adopting the signal modulation frequency of the radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensors are used for acquiring the position information of the outlet pressure plate; dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups; the data collected by the pressure plate position sensors in each group are respectively sent to the data receiving terminal, and the purpose of improving the data collision condition is achieved by scheduling the communication of the pressure plate position sensors in the radio frequency network, so that the technical effect of improving the communication stability and the transmission reliability of the radio frequency network is achieved, and the technical problem that when the outlet pressure plate on the relay protection screen cabinet is monitored by using the radio frequency communication mode, the data are sent out in a non-sequence mode in the radio frequency communication network to seize resources, and the signal collision is easily caused to cause data loss is further solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of a method of transmitting monitoring data for an outlet platen according to an embodiment of the present application;
FIG. 2 is a schematic diagram of frequency dividing, grouping platen position sensors according to an embodiment of the present application;
FIG. 3 is a platen position sensor reference time synchronization flow diagram according to an embodiment of the present application;
FIG. 4 is a graph of a transmission timing profile of data transmitted by a platen position sensor in accordance with an embodiment of the present application;
FIG. 5 is a schematic diagram of a periodic data transmission mechanism according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a modified data transmission mechanism according to an embodiment of the present application;
FIG. 7 is a schematic view of a monitoring system for an outlet platen according to an embodiment of the present application;
fig. 8 is a block diagram of a transmission device for monitoring data of an outlet platen according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present application, there is provided an embodiment of a method of transmitting monitoring data of an outlet platen, it is noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein.
Fig. 1 is a flowchart of a method for transmitting monitoring data of an outlet platen according to an embodiment of the present application, as shown in fig. 1, the method including the steps of:
step S102, dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for collecting the position information of an outlet pressure plate;
referring to the description of the background art, the outlet pressing plate is an obvious electrical opening point on a relay protection outlet loop of the relay protection screen cabinet, and a power transformation operator changes the operation mode of relay protection by switching in and out the outlet pressing plate so as to meet the operation requirement of a power grid mode and provide a convenient maintenance means for a maintainer.
In a relay protection chamber of a conventional transformer substation, the number of outlet pressing plate nodes to be monitored is about 300, and if transmission control is not performed on a large number of sensors, disordered radio frequency signals are filled in the protection chamber. The data collision possibility is greatly improved in the peak time of data transmission, and the data processing pressure of the data receiving terminal is increased.
The frequency division control is carried out on the sensor SUB-G module (radio frequency module), and the anti-collision of communication transmission can be realized on the hardware level. The outlet pressure plates are usually distributed on the lower portion of the protection screen cabinet, the sensors are shielded by the metal screen cabinet after being installed, signal attenuation is obvious, and therefore the sensors need to be divided into a plurality of areas according to the position of the protection screen cabinet to be collected respectively. The signal coverage overlapping exists in each sensor acquisition area, and data transmission collision easily occurs in a signal overlapping area. The sensor SUB-G radio frequency module has a wave band modulation function and has a plurality of typical wave bands of 425MHz, 430MHz, 433MHz and the like. The data of the SUB-G modules in the same radio frequency band can be transmitted mutually, but the signals of the SUB-G modules in different radio frequency bands are isolated. According to the adjustable characteristic of the frequency band of the SUB-G module, each sensor area is modulated in different frequency bands, communication collision is controlled in each area through frequency division of the sensors, and the collision is possibly controlled among a plurality of sensors with the same frequency band of about 100.
Step S104, dividing the pressure plate position sensors in the same frequency band into a plurality of groups;
and the sensors in each area are subjected to address grouping numbering, so that the anti-collision of communication transmission can be further realized on a software level. After frequency division processing of each sensor area, collision prevention of transmission is achieved between areas, but collision possibility still exists in the areas. The sensors in the same area are further divided into a plurality of groups, signals with the same frequency band among the sensor groups are communicated, the data transmission of the sensors in the same group is normal, but the data isolation of the sensors among different groups is realized after the data of the sensors are filtered by software, and the communication transmission collision is further controlled in about 100 sensors in each group after the sensors are grouped.
And step S106, respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal.
Through the steps, the purpose of improving the data collision condition is achieved by scheduling the communication of the pressure plate position sensor in the radio frequency network, so that the technical effects of improving the communication stability and the transmission reliability of the radio frequency network are achieved.
According to an alternative embodiment of the present application, after step S104 is completed, the platen position sensors in each group are numbered respectively; and taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor.
Fig. 2 is a schematic diagram of frequency division and grouping of the platen position sensors according to an embodiment of the present application, and as shown in fig. 2, after the platen position sensors are subjected to frequency division and grouping, data transmission ranges are controlled in the same frequency band and the same group, and transmission collisions may be controlled in each group in principle. And sequencing and allocating numbers to the sensors in each group in sequence, taking the address combination of the group number and the number as a unique ID of the sensor, and designing a synchronization mechanism by taking the ID as a basis to realize data transmission anti-collision of the sensors in the group.
According to another alternative embodiment of the present application, step S106 is implemented by: and sequentially sending the data collected by the pressure plate position sensor to a data receiving terminal according to the identification, wherein each group corresponds to one data receiving terminal.
In some optional embodiments of the present application, sequentially sending data collected by the platen position sensor to the data receiving terminal according to the identifier includes the following steps: sending a reference clock request to a data receiving terminal, wherein the data receiving terminal sends a reference clock to the pressure plate position sensor after confirming that the pressure plate position sensor is legal; after the reference clock is obtained, calculating the transmission time of the data according to the identification; and sending the data to the data receiving terminal at the transmission moment.
The pressure plate position sensor is designed through synchronous mechanism software, so that the accurate data transmission time can be automatically calculated, and data collision is prevented. After frequency division and grouping numbering, each sensor obtains a unique ID in the field. And a data receiving terminal is arranged in each group, and the sensors in the group use the data receiving terminals as reference clocks and sequentially transmit data to the data receiving terminals according to the numbers.
FIG. 3 is a flow chart of reference time synchronization of the platen position sensor according to an embodiment of the present application, where as shown in FIG. 3, the sensor terminal sends a reference clock request to the data receiving terminal, and the data receiving terminal sends a reference clock to the platen position sensor after confirming that the platen position sensor is legal; after the sensor section acquires the reference clock, calculating the transmission time of the data transmitted by the pressure plate position sensor according to the identification; sending the data to a data receiving terminal at the transmission moment; and the data receiving terminal confirms the data after receiving the data.
According to an alternative embodiment of the application, the calculation of the transmission moment of the transmission data of the platen position sensor according to the identification is realized by the following method: determining the transmission interval of the data transmitted by the pressure plate position sensor according to the capacity of the pressure plate position sensor and the transmission period of the data transmitted by the pressure plate position sensor; and calculating the transmission time of the data transmitted by the pressure plate position sensor according to the transmission interval, the identification and the starting time of the transmission period.
If the design capacity of the acceptable sensor of the data receiving terminal is N, the data transmission period of the sensor is T, and the starting moment of the transmission period is C, the transmission interval T of the sensor is set0Comprises the following steps:
the transmission time T of the sensor numbered MMComprises the following steps:
the calculated transmission moments of the sensors are evenly distributed within the period T, as shown in fig. 4.
Under the synchronous mechanism, the sensor keeps clock consistency with the acquisition terminal when the sensor starts to operate and determines the transmission time in the group. Each sensor accurately transmits data at the transmission moment and immediately silences after the communication is finished. The peak-shifting transmission mode reasonably distributes transmission intervals, and avoids data collision caused by disordered transmission of the sensor.
According to another optional embodiment of the present application, sending data to a data receiving terminal at a transmission time comprises: if the data is not the displacement data, continuously transmitting the data for a first preset time according to a preset time interval during data transmission, wherein the displacement data are data with changed data bits; and if the data is the displacement data, continuously transmitting the data for a second preset time according to a preset time interval when the data is transmitted, wherein the second preset time is greater than the first preset time, and the product of the second preset time and the preset time interval is less than the transmission interval.
The synchronous mechanism controls the peak-shifting transmission of each sensor, and the saturated information sending mechanism ensures the reliability of data receiving. The sensor data transmission interval is about 10s, while the sensor SUB-G module only needs about 20ms to transmit one frame of data. Under the condition of sufficient transmission intervals, the sensors adopt different sending strategies according to the importance of the transmitted data.
Sensor sending periodic data mechanism as shown in fig. 5, data is transmitted continuously 6 times at 30ms intervals, T0The horizontal axis is the transmission time, which is the interval time.
Sensor transmitting displacement data mechanism As shown in figure 6, data is transmitted 14 times continuously at a frequency of 30ms interval, T0The horizontal axis is the transmission time, which is the interval time.
The above-mentioned displacement data is data bits of data converted, for example, data bit 10 is converted to 01 when data is repeatedly transmitted at a predetermined cycle.
Under the information sending mechanism, even if individual data sending collision is lost under extreme conditions, the saturated information sending mechanism ensures successful data transmission and ensures the stability and reliability of communication.
Fig. 7 is a schematic diagram of a monitoring system for an outlet pressure plate according to an embodiment of the present application, and as shown in fig. 7, a single substation is used as a research object, an outlet pressure plate online monitoring system in a radio frequency manner is deployed in the substation, and after the processing by the above anti-collision processing scheme, pressure plate position data acquisition is performed, and the acquired data is subjected to effect display through a human-computer interface.
The sensor wireless communication anti-collision processing method provided by the invention provides a data communication mechanism for a radio frequency mode outlet pressing plate online monitoring scheme, effectively solves the problem of radio frequency network data collision in a pressing plate online monitoring system, promotes the pressing plate online monitoring system to be quickly constructed, expands the application of the internet of things technology in a power system, eliminates the major potential safety hazard of power grid operation caused by pressing plate error and missed delivery, avoids the misoperation and operation rejection accidents of a relay protection device caused by manual operation error, greatly improves the power supply reliability, avoids the electric quantity loss caused by power failure, and ensures the safe and stable operation of equipment and the power grid.
Fig. 8 is a block diagram of a transmission device for monitoring data of an outlet platen according to an embodiment of the present application, as shown in fig. 8, the device includes:
the first dividing module 80 is configured to divide the platen position sensor into platen position sensors located in different frequency bands according to a signal modulation frequency of a radio frequency module of the platen position sensor, where the platen position sensor is configured to acquire position information of an outlet platen;
a second dividing module 82, configured to divide the pressure plate position sensors located in the same frequency band into a plurality of groups;
and the sending module 84 is used for respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal.
According to an alternative embodiment of the present application, the apparatus further comprises: the coding module is used for numbering the pressure plate position sensors in each group after dividing the pressure plate position sensors in the same frequency band into a plurality of groups; and taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor.
According to another alternative embodiment of the present application, the sending module 84 is configured to sequentially send the data collected by the platen position sensors to the data receiving terminals according to the identifiers, where each group corresponds to one data receiving terminal.
It should be noted that reference may be made to the description related to the embodiment shown in fig. 1 for a preferred implementation of the embodiment shown in fig. 8, and details are not repeated here.
The embodiment of the application also provides a nonvolatile storage medium, wherein the nonvolatile storage medium comprises a stored program, and the device where the nonvolatile storage medium is located is controlled to execute the transmission method of the monitoring data of the outlet pressure plate during program running.
The above-described nonvolatile storage medium is also used to store a program that performs the following functions: dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for acquiring the position information of an outlet pressure plate; dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups; and respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal.
The embodiment of the application also provides a processor which is used for running the program stored in the memory, wherein the program is used for executing the monitoring data transmission method of the outlet pressure plate during running.
The processor is used for running a program for executing the following functions: dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for acquiring the position information of an outlet pressure plate; dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups; and respectively sending the data collected by the pressure plate position sensors in each group to a data receiving terminal.
The above-mentioned serial numbers of the embodiments of the present application are merely for description, and do not represent the advantages and disadvantages of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple 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 through some interfaces, units or modules, and may be in an electrical 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 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.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a Read Only Memory (ROM), a random access Memory (RBJDLM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (4)
1. A method of transmitting monitored data of an outlet platen, comprising:
dividing the pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, wherein the pressure plate position sensor is used for collecting the position information of an outlet pressure plate;
dividing the pressure plate position sensors positioned in the same frequency band into a plurality of groups respectively;
numbering the platen position sensors in each group respectively;
taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor;
respectively with in every group the data transmission that clamp plate position sensor gathered to data receiving terminal includes:
sequentially sending data collected by the pressure plate position sensor to the data receiving terminals according to the identification, wherein each group corresponds to one data receiving terminal;
according to the identification, the data collected by the pressure plate position sensor are sequentially sent to the data receiving terminal, and the method comprises the following steps:
sending a reference clock request to the data receiving terminal, wherein the data receiving terminal sends a reference clock to the pressure plate position sensor after confirming that the pressure plate position sensor is legal;
after the reference clock is obtained, calculating the transmission time of the data transmitted by the pressure plate position sensor according to the identification, wherein the method comprises the following steps: determining a transmission interval of the data transmitted by the pressure plate position sensor according to the capacity of the pressure plate position sensor and the transmission period of the data transmitted by the pressure plate position sensor; calculating the transmission time of the data transmitted by the pressure plate position sensor according to the transmission interval, the identification and the starting time of the transmission period;
and sending the data to the data receiving terminal at the transmission moment.
2. The method of claim 1, wherein sending the data to the data receiving terminal at the transmission time comprises:
if the data is not the displacement data, continuously transmitting the data for a first preset time according to a preset time interval when transmitting the data, wherein the displacement data is the data with changed data bits;
and if the data is the displacement data, continuously transmitting a second preset time according to the preset time interval when the data is transmitted, wherein the second preset time is greater than the first preset time, and the product of the second preset time and the preset time interval is less than the transmission interval.
3. A device for transmitting monitoring data of an outlet platen, comprising:
the device comprises a first dividing module, a second dividing module and a control module, wherein the first dividing module is used for dividing a pressure plate position sensor into pressure plate position sensors positioned in different frequency bands according to the signal modulation frequency of a radio frequency module of the pressure plate position sensor, and the pressure plate position sensors are used for acquiring the position information of an outlet pressure plate;
the second dividing module is used for dividing the pressure plate position sensors in the same frequency band into a plurality of groups;
the device comprises a coding module, a processing module and a processing module, wherein the coding module is used for respectively numbering the pressure plate position sensors in each group after dividing the pressure plate position sensors in the same frequency band into a plurality of groups; taking the serial number and the group number of the pressure plate position sensor as the identifier of the pressure plate position sensor;
the sending module is used for respectively sending the data collected by the pressure plate position sensor in each group to a data receiving terminal, and comprises: the sending submodule is used for sequentially sending the data collected by the pressure plate position sensor to the data receiving terminals according to the identification, wherein each group corresponds to one data receiving terminal;
the transmission submodule includes:
the first sending unit is used for sending a reference clock request to the data receiving terminal, wherein the data receiving terminal sends a reference clock to the pressing plate position sensor after confirming that the pressing plate position sensor is legal;
the calculation unit is used for calculating the transmission time of the data transmitted by the pressure plate position sensor according to the identifier after the reference clock is acquired;
a third sending unit, configured to send the data to the data receiving terminal at the transmission time; the calculation unit includes:
the determining subunit is used for determining a transmission interval of the data transmitted by the pressure plate position sensor according to the capacity of the pressure plate position sensor and the transmission period of the data transmitted by the pressure plate position sensor;
and the calculation subunit is used for calculating the transmission time of the data transmitted by the pressure plate position sensor according to the transmission interval, the identification and the starting time of the transmission period.
4. A non-volatile storage medium, comprising a stored program, wherein the program, when executed, controls a device in which the non-volatile storage medium is located to perform the method of transmitting monitoring data of an outlet platen according to any one of claims 1 to 2.
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