CN105429678A - Ultrasonic partial discharge detection signal Bluetooth transmission device and data transmission method thereof - Google Patents
Ultrasonic partial discharge detection signal Bluetooth transmission device and data transmission method thereof Download PDFInfo
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- H04B5/28—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- H04B5/73—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
Abstract
The invention provides an ultrasonic partial discharge detection signal Bluetooth transmission device and a data transmission method thereof. The device comprises two transmitting ends and at least one receiving end, wherein each transmitting end comprises a first Bluetooth module, each receiving end comprises a second Bluetooth module and a master control module which controls each second Bluetooth module to respectively constitute a transmission network with the corresponding first Bluetooth module, and a transmission control module is used for controlling each first Bluetooth module to access the corresponding transmission network in different time slot and selecting the corresponding transmission network to transmit detection data. Therefore, point-to-point transmission connection does not need to be established, transmission cost is reduced, in addition, each first Bluetooth module accesses the corresponding transmission network for transmitting data in different time slot, and data of detection equipment can be transmitted in parallel through information time division multiplexing among the transmitting ends and the receiving end; and thereby, reliable real-time parallel time division multiplexing transmission of data is achieved, the transmission networks are more fully utilized, and the transmission efficiency is higher.
Description
Technical field
The present invention relates to the technical field of ultrasonic wave Partial Discharge Detection Signal transmissions, particularly a kind of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means, and a kind of data transmission method of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means.
Background technology
Carrying out partial discharge test to electric equipment is electric equipment manufacture and an operating important preventive trial.If partial discharge long-term existence, meeting acceleration equipment is aging, even can cause insulation breakdown under certain condition, have a strong impact on the normal operation of equipment.The insulation status that partial discharge monitoring is understanding equipment is carried out to electric equipment, determines one of most effective means of the position that insulation fault produces and reason thereof.The interference that ultrasonic Detection Method is subject to electrical characteristic is little, remote-wireless can be realized measure, relative to detection methods such as traditional electric pulses, have obvious advantage, especially, in the Partial Discharge Detection of large value capacitor, its sensitivity is even higher than electrical pulse method.
At present, mainly above the transmission of electric power checkout equipment detection signal three kinds of modes are adopted.One is do not carry out Signal transmissions, and checkout equipment processes signal, when needing to preserve detection data, then copies on ability memory device with data wire by signal; Two is that data are transferred on treatment facility from supersonic reflectoscope by usage data transmission line immediately, carries out analyzing and processing; Three is use Wi-Fi technology to carry out transfer of data.All there is obvious deficiency in above method: on checkout equipment, the requirement of Storage and Processing information to checkout equipment is higher, there are larger deal with data and storage capacity, later stage just copies also easily causes the accident of data to lose, and is not easy to adopt other analytical method to carry out research process to data; Very large inconvenience is brought to use with the mode equipment of data line transfer; Although last Wi-Fi transmission method is feasible, also there is the problem that equipment manufacturing cost is higher and power consumption is larger, this technology also has the demand to network simultaneously, not too easily realizes for outdoor study.
Bluetooth technology is the open global specifications of a kind of wireless data and voice communication, and it, based on the short-distance wireless of low cost connects, can be the access service that terminal equipment that is fixing or movement provides cheap.Bluetooth technology is for the communication environment between permanent plant or mobile device sets up general low coverage wave point, by the communication technology and computer technology further combined with getting up, various equipment is made not have, in electric wire or the interconnective situation of cable, to realize intercoming mutually or operating in short range.Good selections by Bluetooth technology transmission data in Partial Discharge Detection, but the data volume of Partial Discharge Detection signal is larger, in testing process, often there is multiple checkout equipment to work simultaneously, adopting point-to-point mode to transmit data needs too much bluetooth module could realize the real-time Transmission of data, and cost is higher.
Summary of the invention
Based on this, the object of the embodiment of the present invention is to provide a kind of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means, can the larger Partial Discharge Detection signal of transmitted data amount, and has lower cost.
For achieving the above object, the embodiment of the present invention by the following technical solutions:
A kind of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means, comprises at least two transmitting terminals and at least one receiving terminal;
Described transmitting terminal comprises the detection signal acquisition module, transmission control module and the first bluetooth module that connect in turn; Detection data for obtaining the detection data of discharge equipment, and are transferred to described transmission control module by described detection signal acquisition module; Described transmission control module is used for detecting data described in buffer memory and encoding to described detection data, controls each first bluetooth module and accesses corresponding transmission network at different time-gap, select corresponding transmission network to send described detection data;
Described receiving terminal comprises at least two the second bluetooth modules and a main control module, described second bluetooth module is all connected with described main control module, described main control module forms transmission network with described first bluetooth module respectively for controlling the second bluetooth module described in each, receive described detection data and decode, isolating the detection data of transmitting terminal described in each.
The ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the embodiment of the present invention comprises two transmitting terminals and at least one receiving terminal, transmitting terminal comprises the first bluetooth module, receiving terminal comprises the second bluetooth module and main control module, described main control module controls the second bluetooth module described in each and forms transmission network with described first bluetooth module respectively, described transmission control module accesses corresponding transmission network for controlling each first bluetooth module at different time-gap, selects corresponding transmission network to send described detection data.Therefore, do not need to set up point-to-point transmission to connect, reduce transmission cost, and the ultrasonic wave Partial Discharge Detection signal that the transmission network transmitted data amount consisted of each second bluetooth module and described first bluetooth module is larger, each first bluetooth module can access corresponding transmission network transmission data at different time-gap, and the detection data of multiple checkout equipment can by the information time division multiplexing parallel transmission between transmitting terminal and receiving terminal.The control module of transmitting terminal can be embedded microprocessor, and the main control module of receiving terminal receives from the second bluetooth module and detects data and the transmission data of taking out different transmitting terminal respectively, processes.Thus realize the reliable real-time parallel time multiplexed transmission of data, therefore more abundant to the utilization of transmission network, efficiency of transmission is higher.
For achieving the above object, the embodiment of the present invention also by the following technical solutions:
A data transmission method for above-mentioned ultrasonic wave Partial Discharge Detection signal bluetooth transmission means, comprises the following steps:
Obtain the number needing the first bluetooth module connected;
When the number of described first bluetooth module is less than or equal to the number of described second bluetooth module, control described second bluetooth module and set up point to point connect with described first bluetooth module respectively, received the detection data of transmitting terminal described in each by described point to point connect;
When the number of described first bluetooth module is greater than the number of described second bluetooth module, control each described second bluetooth module and set up the piconet of one-to-many with all first bluetooth modules respectively, sending order and the device id of each the first bluetooth module in piconet described in each are set; Receive the detection data of each piconet transmission respectively by the second bluetooth module described in each, according to described device id, the detection data assemblies of reception is become the detection data of each transmitting terminal at receiving terminal.
In the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the embodiment of the present invention, the number of the first bluetooth module connected first as required determines the mode of networking, if the number of the first bluetooth module is less than or equal to the number of described second bluetooth module, then set up stability and high efficiency that point to point connect ensures transfer of data; If the number of the first bluetooth module is greater than the number of described second bluetooth module, then set up the piconet of one-to-many, sending order and the device id of each the first bluetooth module in piconet described in each are set, receive the detection data of each piconet transmission respectively by the second bluetooth module described in each, according to described device id, the detection data assemblies of reception is become the detection data of each transmitting terminal at receiving terminal.Therefore, it is possible to control each first bluetooth module to access corresponding transmission network at different time-gap, corresponding transmission network is selected to send described detection data.Therefore, do not need to set up point more to connect the transmission of point, reduce transmission cost, and the ultrasonic wave Partial Discharge Detection signal that the transmission network transmitted data amount consisted of each second bluetooth module and described first bluetooth module is larger, each first bluetooth module can access corresponding transmission network transmission data at different time-gap, and the detection data of multiple checkout equipment can by the information time division multiplexing parallel transmission between transmitting terminal and receiving terminal.The control module of transmitting terminal can be embedded microprocessor, and the main control module of receiving terminal receives from the second bluetooth module and detects data and the transmission data of taking out different transmitting terminal respectively, processes.Thus realize the reliable real-time parallel time multiplexed transmission of data, therefore more abundant to the utilization of transmission network, efficiency of transmission is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of an embodiment;
Fig. 2 is the implementation schematic diagram of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of an embodiment;
Fig. 3 is the schematic flow sheet of the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of an embodiment;
Fig. 4 is the schematic flow sheet of the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of another embodiment;
Fig. 5 is to the flow chart that two kinds of mode of operations are selected in an embodiment.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that embodiment described herein only in order to explain the present invention, do not limit protection scope of the present invention.
The structure of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the present invention in an embodiment has been shown in Fig. 1.
Described ultrasonic wave Partial Discharge Detection signal bluetooth transmission means comprises: at least two transmitting terminals 10 and at least one receiving terminal 20;
Described transmitting terminal 10 comprises the detection signal acquisition module 11, transmission control module 12 and the first bluetooth module 13 that connect in turn; Detection data for obtaining the detection data of discharge equipment, and are transferred to described transmission control module 12 by described detection signal acquisition module 11; Described transmission control module 12, for detecting data described in buffer memory and encoding to described detection data, controls each first bluetooth module 13 and accesses corresponding transmission network at different time-gap, selects corresponding transmission network to send described detection data;
Described receiving terminal 20 comprises at least two the second bluetooth modules 21 and a main control module 22, described second bluetooth module 21 is all connected with described main control module 22, described main control module 22 forms transmission network with described first bluetooth module 13 respectively for controlling the second bluetooth module 21 described in each, receive described detection data and decode, isolating the detection data of transmitting terminal 20 described in each.
Therefore, do not need to set up point-to-point transmission to connect, reduce transmission cost, and the ultrasonic wave Partial Discharge Detection signal that the transmission network transmitted data amount consisted of each second bluetooth module and described first bluetooth module is larger, each first bluetooth module can access corresponding transmission network transmission data at different time-gap, and the detection data of multiple checkout equipment can by the information time division multiplexing parallel transmission between transmitting terminal and receiving terminal.The control module of transmitting terminal can be embedded microprocessor, and the main control module of receiving terminal receives from the second bluetooth module and detects data and the transmission data of taking out different transmitting terminal respectively, processes.Thus realize the reliable real-time parallel time multiplexed transmission of data, therefore more abundant to the utilization of transmission network, efficiency of transmission is higher.
As shown in Figure 2, the present invention can realize real-time time multiplexing signal transfer function, the sending ending equipment of multiple spot can parallel transmission information in receiving terminal computer.Signal is transferred to respectively in two the second bluetooth modules by different transmitting terminal in different sequential, two the second bluetooth modules of receiving terminal computer belong to different piconets respectively, signal in memory block takes out by final main control module, be distributed in different queue the separation realizing transmitting terminal signal, computer, processing the signal after separation, reaches the object of multi-point signal parallel transmission.Receiving device is not limited to the computer of the above-mentioned band bluetooth module mentioned, also can be that other have embedded device or the portable set of bluetooth module.
Described ultrasonic wave Partial Discharge Detection signal bluetooth transmission means comprises transmitting terminal 10 and receiving terminal 20 two parts, and multiple transmitting terminal 11 adopts wireless mode to be connected with a receiving terminal 20.Transmitting terminal 10 comprises the detection signal acquisition module 11, transmission control module 12 and the first bluetooth module 13 that connect in turn; Described detection signal acquisition module 11 is for connecting ultrasonic detecting equipment, and ultrasonic detecting equipment sends control module 12 for detecting discharge equipment and detection data being transferred to.Described transmission control module 12, for the treatment of ultrasonic testing signals, is encoded to signal according to transmission requirement, buffer memory transmission information, and Mediation Device first bluetooth module 13 works.Preferably, send control module 12 and detect data for buffer memory and data are encoded, determine the blueteeth network of the first bluetooth module 13 access in different time-gap and send data.
Receiving terminal 20 comprises n the second bluetooth module 21 and a main control module 22, and all second bluetooth modules 21 are all connected with main control module 22.Main control module 22, for controlling the transfer of data of each second bluetooth module 21, receives data and will decode, being separated the data of different transmitting terminal 10 to subsequent processing device.
Preferably, described in one of them, the second bluetooth module 21 is set to main equipment, and all the other second bluetooth modules 21 are set to from equipment.Described main control module 22 also for detect in transmission network that request sets up that bluetooth connects from number of devices, link information according to main equipment activates from equipment work, according to Internet Transmission demand modeling network organizing mode, allocation of network resources is coordinated respectively from the information transmission of equipment.
By the second bluetooth module of receiving terminal being arranged to the form of master-slave equipment, can when not being connected with transmitting terminal, only start a main equipment to detect, when connection request being detected, need the number of the first bluetooth module connected again according to transmitting terminal, select to start respective number from equipment, greatly can reduce the energy consumption of whole device, and corresponding networking mode can be selected according to the number of transmitting terminal bluetooth module, very flexibly.
The schematic flow sheet of the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the present invention in an embodiment has been shown in Fig. 3.
The data transmission method of described ultrasonic wave Partial Discharge Detection signal bluetooth transmission means comprises the following steps:
S302, obtains the number needing the first bluetooth module connected;
S304, when the number of described first bluetooth module is less than or equal to the number of described second bluetooth module, controls described second bluetooth module and sets up point to point connect with described first bluetooth module respectively;
The detection data of transmitting terminal described in each are received by described point to point connect.
S306, when the number of described first bluetooth module is greater than the number of described second bluetooth module, controls each described second bluetooth module and sets up the piconet of one-to-many with all first bluetooth modules respectively.
Set up corresponding piconet, sending order and the device id of each the first bluetooth module in piconet described in each are set; Receive the detection data of each piconet transmission respectively by the second bluetooth module described in each, according to described device id, the detection data assemblies of reception is become the detection data of each transmitting terminal at receiving terminal.
In the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the embodiment of the present invention, the number of the first bluetooth module connected first as required determines the mode of networking, if the number of the first bluetooth module is less than or equal to the number of described second bluetooth module, then set up stability and high efficiency that point to point connect ensures transfer of data; If the number of the first bluetooth module is greater than the number of described second bluetooth module, then set up the piconet of one-to-many, sending order and the device id of each the first bluetooth module in piconet described in each are set, receive the detection data of each piconet transmission respectively by the second bluetooth module described in each, according to described device id, the detection data assemblies of reception is become the detection data of each transmitting terminal at receiving terminal.Therefore, it is possible to control each first bluetooth module to access corresponding transmission network at different time-gap, corresponding transmission network is selected to send described detection data.Therefore, do not need to set up point more to connect the transmission of point, reduce transmission cost, and the ultrasonic wave Partial Discharge Detection signal that the transmission network transmitted data amount consisted of each second bluetooth module and described first bluetooth module is larger, each first bluetooth module can access corresponding transmission network transmission data at different time-gap, and the detection data of multiple checkout equipment can by the information time division multiplexing parallel transmission between transmitting terminal and receiving terminal.The control module of transmitting terminal can be embedded microprocessor, and the main control module of receiving terminal receives from the second bluetooth module and detects data and the transmission data of taking out different transmitting terminal respectively, processes.Thus realize the reliable real-time parallel time multiplexed transmission of data, therefore more abundant to the utilization of transmission network, efficiency of transmission is higher.
Wherein, the control module 12 of described transmitting terminal 10 opens the first bluetooth module 13, and request connects with the second bluetooth module 21 of receiving terminal 20; The main control module 22 of described receiving terminal 20 detects the number needing the receiving terminal connected, and adopts different working methods respectively, be specially the group-net communication mode of point-to-point communication mode and piconet for checkout equipment number.
Described second bluetooth module 21 is set to main equipment wherein, all the other second bluetooth modules 21 are set to from equipment.
Main control module 22 determines the working method of each the second bluetooth module 21, to each the second bluetooth module 21 distributing equipment identification number information belonged to from equipment, determines to belong to the network organization from the second bluetooth module 21 of equipment and transmission sequence;
The detection signal data that described second bluetooth module 21 receives from the first bluetooth module 13 of its correspondence are stored into data buffer area, main control module 22 extracts the detection data that different transmitting terminals 10 sends, and is distributed to the Storage and Processing region of each processing queue in order to the later stage.
Preferably, described main equipment and the working method from equipment are:
(1) when bluetooth transmission means of the present invention starts, main equipment starts, and in running order, and from device sleeps, main equipment detection needs the number of the transmitting terminal connected around, main equipment by information feed back to main control module.
(2) when the transmitting terminal number that need connect is less than the number of the second bluetooth module of receiving terminal, main control module start respective number from equipment, the second bluetooth module making startup is equal with the number of first bluetooth module that need connect, and adopts point-to-point mode to connect;
(3) when the transmitting terminal number that need connect is greater than the number of the second bluetooth module of receiving terminal, activate the second bluetooth equipment of all receiving terminals, adopt the mode of piconet to connect.
By the second bluetooth module of receiving terminal being arranged to the form of master-slave equipment, can when not being connected with transmitting terminal, only start a main equipment to detect, when connection request being detected, need the number of the first bluetooth module connected again according to transmitting terminal, select to start respective number from equipment, greatly can reduce the energy consumption of whole device, and corresponding networking mode can be selected according to the number of transmitting terminal bluetooth module, very flexibly.
Preferably, in piconet mode of operation, the second bluetooth module of receiving terminal sets up piconet separately, and each piconet comprises the second bluetooth module of a receiving terminal and all first bluetooth modules of transmitting terminal.Each transmitting terminal is in heterogeneous networks at different time-gap, and can send data in a network in current time slots.Detailed process is as follows:
(1) each second bluetooth module of receiving terminal and main control module clock synchronous send to connect to each transmitting terminal and ask, connect after transmitting terminal certification, and keep, with the connection status of each piconet, namely keeping clock synchronization information, frequency hop sequences.
(2) main control module of receiving terminal is numbered to each bluetooth module in network and sorts, according to the bluetooth module number of transmitting terminal and receiving terminal, for each piconet determines a transmitting terminal sending data the earliest.If the second bluetooth module number of receiving terminal is n, the number of transmitting terminal is m, then can be set to every m/n transmitting terminal the transmitting terminal sending data in one of them piconet the earliest in transmitting terminal sequencing numbers, and the network in each interval is initially linked in identical network, total transmitting terminal number of each piconet is still m.
(3) by transmitting terminal sequencing information, send the earliest data transmitting terminal numbering and network information transfer to each transmitting terminal, each transmitting terminal is determined to send data time the earliest according to sequencing information, then the transmitting terminal that time slot sends data accesses heterogeneous networks in order according to the sequence of receiving terminal bluetooth, and the second bluetooth module poll transmitting terminal of receiving terminal sends data.
(4) at different time-gap, the first bluetooth module of transmitting terminal works in different piconet, is specially transmitting terminal adopts different piconet synchronising frequency hopping information at different time-gap, realizes switching fast in a network.
Be equivalent to there is multiple network in transmitted in parallel data, each checkout equipment message transmission rate is directly proportional to network number compared with single network configuration.Therefore, it is possible to greatly improve the efficiency sending data, reduce networking cost.
Preferably, each second bluetooth module concurrent working of receiving terminal, each second bluetooth module all can receive the information that all transmitting terminals send, and the detection signal adopting requisite measure to be separated to receive ensures that the real-time parallel of data transmits.Concrete grammar is increase the different sending ending equipment of device identification digit separator in the grouped data sending data.All reception data are put into same buffering area by receiving terminal, main control module take out data according to, and according to device id, grouped data is put into corresponding queue, realizes parallel processing.
The data of each transmitting terminal are transmitted and by after the reception of different receiving terminal second bluetooth modules, are still identified by described device id, and accurately recombinate in different networks.
In order to better the present invention is described, the situation of two the second bluetooth modules is had to be described for receiving terminal below.
The ultrasonic wave Partial Discharge Detection signal bluetooth transmission means of the present embodiment as shown in Figure 2, increases by two bluetooth modules at receiving terminal data processing equipment (computer), realizes the information time division multiplexing parallel transmission between multiple transmitting terminal and receiving terminal.The control module of sending ending equipment can be embedded microprocessor, the main control module of receiving terminal receives data from the second bluetooth module and takes out the transmission data of different transmitting terminal respectively, process, thus realize the reliable real-time parallel time multiplexed transmission of data.
Signal is transferred to respectively in two the second bluetooth modules by different transmitting terminal in different sequential, two the second bluetooth modules of receiving terminal computer belong to different piconets respectively, signal in memory block takes out by final main control module, be distributed in different queue the separation realizing transmitting terminal signal, computer, processing the signal after separation, reaches the object of multi-point signal parallel transmission.Receiving device is not limited to the computer of the above-mentioned band bluetooth module mentioned, also can be that other have embedded device or the portable set of bluetooth module.
As shown in Figure 4, the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means in the present embodiment comprises the following steps:
Step 402, sending ending equipment sends the request established a communications link with receiving terminal bluetooth computer.
The paging of sending ending equipment and receiving terminal bluetooth computer is mainly carried out in mode below: sending ending equipment paging receiving terminal bluetooth computer, initiatively connects when detecting that bluetooth computer exists.Main equipment (one of them the second bluetooth module) statistics of receiving terminal asks the Bluetooth information connected, and is transferred to main control module, the refusal request of connecting.
Step S404, main control module selects different mode of operations according to the bluetooth equipment number of current request interconnection network, when the bluetooth equipment number that need connect is more than or equal to 2, activate second the second bluetooth equipment, simultaneously the clock signal of synchronous two the second bluetooth modules; Adopting point-to-point mode to work when asking the transmitting terminal bluetooth equipment number connected to be less than or equal to two, when being greater than two, enabling two piconet pattern.After determining working method, the second bluetooth module main equipment of receiving terminal initiatively connects with the first bluetooth module request of transmitting terminal, so that setting up receiving terminal is the piconet of main equipment.
Step S406, safety certification, preset the identifying code needing the bluetooth computer connected in sending ending equipment, when identifying code matches with the number pre-set, by certification, communication link set up by sending ending equipment and bluetooth computer; Otherwise authentification failure, refusal connects.
Step S408, transmitting terminal keeps the bluetooth equipment connection status with receiving terminal, the control module of transmitting terminal starts ultrasonic testing signals transmission, control module according to data after the working method transfer encoding of network and add main equipment distribute mobile network identification number, select different transmission meanss and transmission network.Detailed process is shown in Fig. 5.
Step S410, the reception data of two the second bluetooth modules are put into same buffering area by receiving terminal bluetooth computer, main control module takes out the reception data of each grouping, different queue is put into according to the device id in data, decoding individual queue receives data, is separated each transmitting terminal data so that subsequent treatment.
Fig. 5 is to the flow chart that two kinds of mode of operations are selected in an embodiment.Described two kinds of mode of operations are selected mainly to comprise the steps:
Step S502, whether the main control module of receiving terminal bluetooth computer detects currently has plural bluetooth equipment request to connect, and the current whether no initializtion stage, if initial phase proceeds to step S504, otherwise proceeds to step S506.
Step S504, initial phase, second bluetooth module of receiving terminal is divided into main equipment and from equipment, one, the bluetooth equipment number that current request connects is less than or equal to two, for ensureing signal real-time Transmission and abundant utilized bandwidth, two the second bluetooth modules adopt point-to-point mode and single transmitting terminal first bluetooth module to connect respectively, activate Bluetooth slave devices when reaching two connections, and give from equipment transmission link information connection sending ending equipment; Two, when asking the bluetooth equipment number connected to be greater than two, two the second bluetooth modules of main equipment set up piconet with each transmitting terminal first bluetooth module respectively.
Described piconet network working method is: in same piconet, uplink downlink adopts the mode of time division duplex to work, and piconet respectively adopts time division multiplexing mode to send data according to the non-polling case of main equipment from equipment.Require guarantee two piconet time synchronized and adopt different frequency hop sequences, reaching and effectively avoid internetwork interference problem.Sending ending equipment accesses different piconets in different sequential in a time multiplexed manner, namely adopts the tone hopping information frequency hopping of heterogeneous networks in different sequential, due to two clock synchronization of ads so can not cause conflict after switching.With the way selection transmitting terminal of poll in consolidated network, when the transmitting terminal that current network is selected is not this equipment, this equipment with the frequency-hopping mode frequency hopping of another piconet, thus can send data in another network.This working method can improve the transmission rate of data in network effectively, meets the requirement to message transmission rate in real-time parallel transmission.
When setting up bluetooth and connecting, receiving terminal main control module gives each sending ending equipment numbering as device id, main control module determination piconet working method activates the Bluetooth slave devices of receiving terminal, bluetooth master sends total number of devices and initialization data sending terminal number to transmitting terminal, sending ending equipment adds device id when sending information in the data, selects corresponding network according to total number of devices and initialization end number.
Work for 5 transmitting terminals, its work schedule is as following table simultaneously:
| Transmitting apparatus number | 1 | 2 | 3 | 4 | 5 |
| Receiving equipment number | a | b | |||
| Receiving equipment number | a | b | |||
| Receiving equipment number | a | b | |||
| Receiving equipment number | b | a | |||
| Receiving equipment number | b | a | |||
| Receiving equipment number | a | b |
The transmitting terminal number sending data is the earliest 1 and 3, namely with 5/2 for interval, transmitting terminal 1 and 2 is in network a, transmitting terminal 3,4,5 is in network b, each transmitting terminal is determined to send data time the earliest according to sequencing information, transmitting terminal 1 and 3 sends data to receiving terminal a and b respectively, then the transmitting terminal that time slot sends data accesses heterogeneous networks in order according to the sequence of receiving terminal bluetooth, i.e. transmitting terminal 1 access network b, transmitting terminal 3 access network a, receiving terminal is polled to transmitting terminal 2 and 4 respectively and sends data, the like.Visible Lothrus apterus and the message transmission rate of each equipment double.
Step S506, there is the situation that bluetooth equipment number changes in the operation phase, according to new access or the new bluetooth equipment situation disconnected, carries out corresponding mode of operation switching.
Step S508, pattern switches and bluetooth equipment maintenance of information, and the work such as the separation of transmission information, complete primarily of main control module.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a ultrasonic wave Partial Discharge Detection signal bluetooth transmission means, is characterized in that, comprises at least two transmitting terminals and at least one receiving terminal;
Described transmitting terminal comprises the detection signal acquisition module, transmission control module and the first bluetooth module that connect in turn; Detection data for obtaining the detection data of discharge equipment, and are transferred to described transmission control module by described detection signal acquisition module; Described transmission control module is used for detecting data described in buffer memory and encoding to described detection data, controls each first bluetooth module and accesses corresponding transmission network at different time-gap, select corresponding transmission network to send described detection data;
Described receiving terminal comprises at least two the second bluetooth modules and a main control module, described second bluetooth module is all connected with described main control module, described main control module forms transmission network with described first bluetooth module respectively for controlling the second bluetooth module described in each, receive described detection data and decode, isolating the detection data of transmitting terminal described in each.
2. ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 1, it is characterized in that, the second bluetooth module described in one of them is main equipment, and all the other second bluetooth modules are from equipment;
After described main equipment starts, detect the number needing the first bluetooth module connected, and the number of the first bluetooth module detected is fed back to main control module;
Main control module judges according to the number of described first bluetooth module:
When the number of the first bluetooth module is less than or equal to the number of the second bluetooth module, described main control module activates second bluetooth module equal with the first bluetooth module number, and the second bluetooth module controlling to activate sets up point to point connect with the first bluetooth module respectively;
When the number of the first bluetooth module is greater than the number of the second bluetooth module, described main control module activates all second bluetooth modules, and controls each described second bluetooth module and set up the piconet of one-to-many with all first bluetooth modules respectively.
3. the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claims 1 or 2, it is characterized in that, main control module controls each second bluetooth module and sends to all first bluetooth modules the request of connecting, each first bluetooth module and the second corresponding bluetooth module set up piconet, keep and described second bluetooth module clock synchronous, corresponding frequency hop sequences is set, and the data sending order of the first bluetooth module in each described piconet is set;
First bluetooth module described in each adds device id in detection data, and under the control of described main control module, switch corresponding second bluetooth module of connection, add corresponding piconet, and send described detection data according to the data sending order of described piconet.
4. ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 3, it is characterized in that, individual first bluetooth module of m/n of being separated by between the first bluetooth module sending data the earliest in every two piconets, m is the number of the first bluetooth module, and n is the number of the second bluetooth module.
5. ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 3, it is characterized in that, described first bluetooth module receives the connection request of described second bluetooth module, sends authentication information, connect after authentication success to described second bluetooth module.
6. a data transmission method for ultrasonic wave Partial Discharge Detection signal bluetooth transmission means as claimed in claim 1, is characterized in that, comprise the following steps:
Obtain the number needing the first bluetooth module connected;
When the number of described first bluetooth module is less than or equal to the number of described second bluetooth module, control described second bluetooth module and set up point to point connect with described first bluetooth module respectively, received the detection data of transmitting terminal described in each by described point to point connect;
When the number of described first bluetooth module is greater than the number of described second bluetooth module, control each described second bluetooth module and set up the piconet of one-to-many with all first bluetooth modules respectively, sending order and the device id of each the first bluetooth module in piconet described in each are set; Receive the detection data of each piconet transmission respectively by the second bluetooth module described in each, according to described device id, the detection data assemblies of reception is become the detection data of each transmitting terminal at receiving terminal.
7. the data transmission method of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 6, is characterized in that, also comprises that to arrange described second bluetooth module be main equipment, and all the other second bluetooth modules are for obtain step from equipment;
When the number of described first bluetooth module is less than or equal to the number of described second bluetooth module, controls described second bluetooth module and set up point to point connect with described first bluetooth module respectively; When the number of described first bluetooth module is greater than the number of described second bluetooth module, controls the step that each described second bluetooth module sets up the piconet of one-to-many with all first bluetooth modules respectively and comprise:
Main equipment starts;
Main equipment detects the number needing the first bluetooth module connected, and the number of the first bluetooth module detected is fed back to main control module;
Main control module judges according to the number of described first bluetooth module:
When the number of the first bluetooth module is less than or equal to the number of the second bluetooth module, described main control module activates second bluetooth module equal with the first bluetooth module number, and the second bluetooth module controlling to activate sets up point to point connect with the first bluetooth module respectively;
When the number of the first bluetooth module is greater than the number of the second bluetooth module, described main control module activates all second bluetooth modules, and controls each described second bluetooth module and set up the piconet of one-to-many with all first bluetooth modules respectively.
8. the data transmission method of the ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 6 or 7, it is characterized in that, control the step that each described second bluetooth module sets up the piconet of one-to-many with all first bluetooth modules respectively and comprise:
Control each second bluetooth module and send to all first bluetooth modules the request of connecting, each first bluetooth module and the second corresponding bluetooth module set up piconet, keep and described second bluetooth module clock synchronous, arrange corresponding frequency hop sequences;
Main control module arranges the data sending order of the first bluetooth module in each described piconet;
First bluetooth module described in each adds device id in detection data, and under the control of described main control module, switch corresponding second bluetooth module of connection, add corresponding piconet, and send described detection data according to the data sending order of described piconet.
9. the data transmission method of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 8, it is characterized in that, individual first bluetooth module of m/n of being separated by between the first bluetooth module sending data the earliest in every two piconets, m is the number of the first bluetooth module, and n is the number of the second bluetooth module.
10. the data transmission method of ultrasonic wave Partial Discharge Detection signal bluetooth transmission means according to claim 8, it is characterized in that, described first bluetooth module receives the connection request of described second bluetooth module, authentication information is sent to described second bluetooth module, connects after authentication success.
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| CN109547984A (en) * | 2017-08-16 | 2019-03-29 | 上海仪电（集团）有限公司中央研究院 | It is a kind of can be achieved more main one from Bluetooth control system |
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