CN104900042A - Pressure sensing device, data monitoring system and data transmission method - Google Patents
Pressure sensing device, data monitoring system and data transmission method Download PDFInfo
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- CN104900042A CN104900042A CN201510382022.3A CN201510382022A CN104900042A CN 104900042 A CN104900042 A CN 104900042A CN 201510382022 A CN201510382022 A CN 201510382022A CN 104900042 A CN104900042 A CN 104900042A
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Abstract
The invention provides a pressure sensing device, a data monitoring system and a data transmission method. As acquired pressure data are transmitted to a server by using a mobile communication network through a wireless transmission unit arranged in the pressure sensing device, the operations that an optical cable is buried or radio relay equipment is arranged between the pressure sensing device and the server, and the optical cable and the radio relay equipment are maintained by technical personnel are avoided, and further the labor and material cost for acquiring dam pressure data is greatly reduced; in addition, as the transmission range of the mobile transmission network is wide, when the server is set at places away from the pressure sensing device, the pressure sensing device can transmit the pressure data to the server through the mobile communication network by using a simple mode, and further the defect that the data are easily lost as the data transmission is unstable in the transmission process is avoided as much as possible.
Description
Technical field
The present invention relates to field of wireless transmission, in particular to a kind of pressure sensor device, data monitoring system and data transmission method.
Background technology
The Dam Safety Monitoring of China starts from the mid-50, and the sixties is the various monitoring instrument of research and production progressively, monitors the parameter such as stress, temperature, seepage flow, uplift pressure that dam may occur, thus ensures the safety of dam.At present, usually at the bottom setting pressure sensing device of dam, the stress be subject to bottom dam and uplift pressure are measured, and obtaining by arranging server near dam the parameter that pressure sensor device collects, the security of data to dam that the managerial personnel of dam can be collected according to pressure sensor device is analyzed.
Server is generally by optical cable or short distance wireless communication network (as: WI-FI (WIreless-Fidelity, Wireless Fidelity), zigbee (ZigBee protocol) etc.) receive the data that pressure sensor device collects, so be arranged under normal circumstances in the region of distance pressure sensor device several kilometers.Existing server is limited by the mode receiving pressure sensor device data, can only be arranged in the region of distance pressure sensor device several kilometers, but the geographical environment of some Dam Construction is more severe, so around pressure sensor device, all cannot server be set in several kilometers even scope of tens kilometers, so server can only be arranged on the farther place of distance pressure sensor device, so can only ensure that the data of pressure sensor device collection can be transferred in server by burying very long optical cable underground or arranging a large amount of wireless relay apparatus.
Under rugged environment, bury optical cable underground or wireless relay apparatus be set more difficult, higher to the requirement of the installation personnel of optical cable or wireless relay apparatus and optical cable or wireless relay apparatus, need cost mint of money buy high standard optical cable or wireless relay apparatus and use a large amount of professional and technical personnel can complete the installation of optical cable or wireless relay apparatus; And, geographical environment residing for dam badly can shorten the serviceable life of optical cable and wireless relay apparatus, optical cable and wireless relay apparatus are often damaged, thus cause pressure sensor device to the poor reliability of the process of server transmission data, and need the technician of some to safeguard optical cable and wireless relay apparatus, and the distance that server and pressure sensor device are arranged is far away, so safeguard that the quantity of the technician of optical cable and wireless relay apparatus is more, this considerably increases collection of server pressure sensor device send the cost of data.
Summary of the invention
The object of the present invention is to provide a kind of pressure sensor device, data monitoring system and data transmission method, wherein the data collected are transferred to server by mobile communications network by pressure sensor device, without the need to burying optical cable underground or arrange wireless relay apparatus between pressure sensor device and server, install simple and reduce the cost of data transmission.
First aspect, embodiments provides a kind of pressure sensor device, and described pressure sensor device comprises: pressure transducer, processing unit and wireless transmission unit; Described processing unit is connected with described pressure transducer and described wireless transmission unit respectively;
Described processing unit comprises: microprocessor, buffer and storer;
Described wireless transmission unit comprises: mobile communication baseband processing chip, analog-to-digital conversion module, mobile communication radio frequency chip and mobile communication antenna;
Described microprocessor is connected with described pressure transducer, described buffer, described storer and described mobile communication baseband processing chip respectively, and described mobile communication baseband processing chip is connected with described analog-to-digital conversion module; Described analog-to-digital conversion module is connected with described mobile communication radio frequency chip, and described mobile communication radio frequency chip is connected with described mobile communication antenna;
Described pressure transducer, for according to the pressure signal got, obtains pressure data, and the described pressure data got is sent to described microprocessor;
Described microprocessor, for receiving the pressure data that described pressure transducer sends, the described pressure data received is cached in described buffer, read the translation profile in described storer, according to the data receiver formula in configuration file, the described pressure data be buffered in described buffer is sent to described mobile communication baseband processing chip;
Described mobile communication baseband processing chip, for carrying out modulation treatment to described pressure data, the described pressure data after having carried out modulation treatment is sent to described analog-to-digital conversion module, the described pressure data after modulation, is transmitted in the mobile communication network;
Described analog-to-digital conversion module, for carrying out digital-to-analog conversion to described pressure data, and sends to described mobile communication radio frequency chip by described pressure data complete for digital-to-analog conversion;
Described mobile communication radio frequency chip, for described pressure data complete for digital-to-analog conversion is sent to server by mobile communication antenna, make described server, receive described pressure data by mobile communications network, according to receiving described pressure data, the security of dam is analyzed.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, described pressure sensor device also comprises wireless transmission unit for subsequent use;
Described wireless transmission unit for subsequent use comprises: satellite navigation system baseband processing chip, analog to digital conversion subelement, satellite navigation system radio frequency chip and satellite navigation system antenna;
Described satellite navigation system baseband processing chip is connected with described microprocessor and analog to digital conversion subelement respectively, described analog to digital conversion subelement is connected with described satellite navigation system radio frequency chip, and described satellite navigation system radio frequency chip is connected with described satellite navigation system antenna;
Described satellite navigation system baseband processing chip, for carrying out modulation treatment to described pressure data, described pressure data after having carried out modulation treatment is sent to described analog to digital conversion subelement, and the described pressure data after modulation, is transmitted in satellite communication network;
Described analog to digital conversion subelement, for carrying out digital-to-analog conversion to described pressure data, and sends to described satellite navigation system radio frequency chip by described pressure data complete for digital-to-analog conversion;
Described satellite navigation system radio frequency chip, for described pressure data complete for digital-to-analog conversion is sent to server by described satellite navigation system antenna, make described server, described pressure data is received by satellite communication network, according to receiving described pressure data, the security of dam is analyzed.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, described satellite navigation system baseband processing chip adopts Beidou satellite navigation system baseband processing chip; Satellite navigation system radio frequency chip adopts Beidou satellite navigation system radio frequency chip; Satellite navigation system antenna adopts Beidou satellite navigation system antenna.
In conjunction with first aspect, embodiments provide the third possible embodiment of first aspect, wherein, described Beidou satellite navigation system radio frequency chip comprises: Big Dipper generation satellite navigation system radio frequency chip, Beidou II satellite navigation system radio frequency chip and power divider, described Big Dipper generation satellite navigation system radio frequency chip is connected with described analog to digital conversion subelement respectively with described Beidou II satellite navigation system radio frequency chip, and by described power divider, be connected with described Beidou satellite navigation system antenna;
Described Big Dipper generation satellite navigation system radio frequency chip, for being sent to described server by Big Dipper generation satellite communication network by described pressure data;
Described Beidou II satellite navigation system radio frequency chip, for being sent to described server by Beidou II satellite communication network by described pressure data.
In conjunction with first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, described pressure transducer, comprising: pressure probe, signal amplifier, AD conversion unit, calibration circuit and processing module;
Described signal amplifier is connected with described pressure probe, AD conversion unit and calibration circuit respectively; Described AD conversion unit is connected with described processing module; Described processing module is connected with described microprocessor;
Described pressure probe, for obtaining pressure signal, and is sent to described signal amplifier by the pressure signal got;
Described signal amplifier, for amplifying the described pressure signal received, is then transferred to described AD conversion unit;
Described calibration circuit, verifies for the described pressure signal received described signal amplifier;
Described AD conversion unit, for carrying out analog to digital conversion to the described pressure signal after amplification, and sends to described processing module by the described pressure signal after analog to digital conversion;
Described processing module, for processing the described pressure signal received, obtains the described pressure data that described pressure signal is corresponding, and the described pressure data obtained is sent to described microprocessor.
Second aspect, embodiments provides a kind of data monitoring system, and described data monitoring system comprises server and above-mentioned pressure sensor device;
Described server is communicated with described pressure sensor device with satellite communication network by mobile communications network;
Described server, for being received the pressure data of described pressure sensor device transmission by mobile communications network or satellite communication network, and according to the described pressure data received, is analyzed the security of dam.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein, described server, periodically receives the pressure data of described pressure sensor device transmission.
The third aspect, embodiments provides a kind of data transmission method, and for pressure sensor device, described data transmission method comprises:
Obtain pressure data;
Send check information by wireless transmission unit to server, described check information is for determining that can described server receive the data of described wireless transmission unit transmission;
When receiving the confirmation of described server feedback, send described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server, described acknowledge message, be used to indicate the described verification message that described server receives the transmission of described wireless transmission unit.
In conjunction with the third aspect, embodiments provide the first possible embodiment of the third aspect, wherein, described when receiving the confirmation of described server feedback, send described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server to comprise:
Judge the described confirmation whether receiving described server feedback in Preset Time;
When receiving the described confirmation of described server feedback in Preset Time, send described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server.
Fourth aspect, embodiments provides a kind of data transmission method, and for server, described data transmission method comprises:
Receive the information that pressure sensor device sends;
Judge whether the information received is check information;
When the information determining to receive is check information, to described pressure sensor device feedback acknowledgment information;
Receive the pressure data that described pressure sensor device sends.
A kind of pressure sensor device that the embodiment of the present invention provides, data monitoring system and data transmission method, by the wireless transmission unit arranged in pressure sensor device, mobile communications network is utilized to be transferred in server by the pressure data of acquisition, so without the need to burying optical cable underground or arrange wireless relay apparatus between pressure sensor device and server, technician is not needed to safeguard optical cable and wireless relay apparatus yet, greatly reduce the manpower and materials cost obtaining dam pressure data, and due to the transmission range of mobile communications network wide, so when Servers installed is in the place that distance pressure sensor device is far, pressure data also simple like this mode can be transferred to server by mobile communications network by pressure sensor device, avoid the defect of the unstable easily obliterated data of data transmission in transmitting procedure as far as possible.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of a kind of pressure sensor device that the embodiment of the present invention provides;
Fig. 2 shows the structural representation of a kind of data monitoring system that the embodiment of the present invention provides;
Fig. 3 shows the process flow diagram of a kind of data transmission method that the embodiment of the present invention provides;
Fig. 4 shows the process flow diagram of the another kind of data transmission method that the embodiment of the present invention provides.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that technician obtains under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Consider in correlation technique, under rugged environment, bury optical cable underground or wireless relay apparatus be set more difficult, higher to the requirement of the installation personnel of optical cable or wireless relay apparatus and optical cable or wireless relay apparatus, need cost mint of money buy high standard optical cable or wireless relay apparatus and use a large amount of professional and technical personnel can complete the installation of optical cable or wireless relay apparatus; And, geographical environment residing for dam badly can shorten the serviceable life of optical cable and wireless relay apparatus, optical cable and wireless relay apparatus are often damaged, thus cause pressure sensor device to the poor reliability of the process of server transmission data, and need the technician of some to safeguard optical cable and wireless relay apparatus, and the distance that server and pressure sensor device are arranged is far away, so safeguard that the quantity of the technician of optical cable and wireless relay apparatus is more, this considerably increases collection of server pressure sensor device send the cost of data.Based on this, embodiments provide a kind of pressure sensor device, data monitoring system and data transmission method, and be described by the following examples.
See Fig. 1, it illustrates the pressure sensor device that the embodiment of the present invention provides, this pressure sensor device comprises: pressure transducer 10, processing unit 11 and wireless transmission unit 12; Processing unit 11 is connected with pressure transducer 10 and wireless transmission unit 12 respectively.
Particularly, processing unit 11 comprises: microprocessor 110, buffer 111 and storer 112;
Wireless transmission unit 12 comprises: mobile communication baseband processing chip 120, analog-to-digital conversion module 121, mobile communication radio frequency chip 122 and mobile communication antenna 123;
Processing unit 11 with the annexation of each parts in wireless transmission unit 12 is: microprocessor 110 is connected with pressure transducer 10, buffer 111, storer 112 and mobile communication baseband processing chip 120 respectively, and mobile communication baseband processing chip 120 is connected with analog-to-digital conversion module 121; Analog-to-digital conversion module is connected with mobile communication radio frequency chip 122, and mobile communication radio frequency chip 122 is connected with mobile communication antenna 123.
The function that pressure transducer 10, processing unit 11 and wireless transmission unit 12 realize respectively in pressure sensor device is:
Pressure transducer 10, for according to the pressure signal got, obtains pressure data, and the pressure data got is sent to microprocessor 110.
Wherein, pressure transducer is arranged at the bottom of dam, for obtaining the pressure data of the stress that dam bears.
Microprocessor 110, for receiving the pressure data that pressure transducer 10 sends, the pressure data received is cached in buffer 111, read the translation profile in storer 112, according to the data receiver formula in configuration file, the pressure data be buffered in buffer 111 is sent to mobile communication baseband processing chip 120.
Mobile communication baseband processing chip 120, for carrying out modulation treatment to pressure data, the pressure data after having carried out modulation treatment is sent to analog-to-digital conversion module 121, and the pressure data after modulation, is transmitted in the mobile communication network.
Analog-to-digital conversion module 121, for carrying out digital-to-analog conversion to pressure data, and sends to mobile communication radio frequency chip 122 by pressure data complete for digital-to-analog conversion;
Wherein, analog-to-digital conversion module 121, for the signal carrying pressure data is converted to simulating signal from digital signal, makes pressure data to transmit in the mobile communication network.
Mobile communication radio frequency chip 122, for pressure data complete for digital-to-analog conversion is sent to server by mobile communication antenna 123, make server, receive pressure data by mobile communications network, according to receiving pressure data, the security of dam is analyzed.
Wherein, microprocessor 110, buffer 111, storer 112, mobile communication baseband processing chip 120, analog-to-digital conversion module 121, with mobile communication radio frequency chip 122, mobile communication antenna 123 all can adopt existing any chip or circuit that can realize corresponding function, repeat no longer one by one here.
In sum, in the pressure sensor device that the present embodiment provides, by the wireless transmission unit arranged in pressure sensor device, mobile communications network is utilized to be transferred in server by the pressure data of acquisition, so without the need to burying optical cable underground or arrange wireless relay apparatus between pressure sensor device and server, technician is not needed to safeguard optical cable and wireless relay apparatus yet, greatly reduce the manpower and materials cost obtaining dam pressure data, and due to the transmission range of mobile communications network wide, so when Servers installed is in the place that distance pressure sensor device is far, pressure data also simple like this mode can be transferred to server by mobile communications network by pressure sensor device, avoid the defect of the unstable easily obliterated data of data transmission in transmitting procedure as far as possible.
When pressure data cannot be sent to server by wireless transmission unit by pressure sensor device, pressure sensor device can use the wireless transmission unit for subsequent use 13 pre-set, and pressure data is sent to server;
Wireless transmission unit 13 for subsequent use comprises: satellite navigation system baseband processing chip 130, analog to digital conversion subelement 131, satellite navigation system radio frequency chip 132 and satellite navigation system antenna 133.
In wireless transmission unit for subsequent use, the annexation of each parts in pressure sensor device is:
Satellite navigation system baseband processing chip 130 is connected with microprocessor 110 and analog to digital conversion subelement 131 respectively, analog to digital conversion subelement 131 is connected with satellite navigation system radio frequency chip 132, and satellite navigation system radio frequency chip 132 is connected with satellite navigation system antenna 133.
In wireless transmission unit for subsequent use, the function of each parts is:
Satellite navigation system baseband processing chip 130, for carrying out modulation treatment to pressure data, sends to analog to digital conversion subelement 131 by the pressure data after having carried out modulation treatment, makes the pressure data after modulating, is transmitted in satellite communication network.
Analog to digital conversion subelement 131, for carrying out digital-to-analog conversion to pressure data, and sends to satellite navigation system radio frequency chip by pressure data complete for digital-to-analog conversion;
Wherein, analog to digital conversion subelement 131, for the signal carrying pressure data is converted to simulating signal from digital signal, makes pressure data can transmit in satellite communication network.
Satellite navigation system radio frequency chip 132, for pressure data complete for digital-to-analog conversion is sent to server by satellite navigation system antenna 133, make server, receive pressure data by satellite communication network, according to receiving pressure data, the security of dam is analyzed.
Satellite navigation system baseband processing chip 130, satellite navigation system radio frequency chip 132 and satellite navigation system antenna 133 can adopt Beidou satellite navigation system (BeiDou Navigation Satellite System respectively, BDS), GPS (Global Positioning System, GPS), the baseband processing chip of GLONASS satellite navigation system (GLOBAL NAVIGATION SATELLITE SYSTEM, GLONASS) and radio frequency chip.
Certainly, in order to make the pressure data of transmission do not obtained by foreign agencies, and in order to ensure security when transmitting data, satellite navigation system baseband processing chip preferably adopts Beidou satellite navigation system baseband processing chip; Satellite navigation system radio frequency chip preferably adopts Beidou satellite navigation system radio frequency chip; Satellite navigation system antenna preferably adopts Beidou satellite navigation system antenna.
Because a BDS generation adopts active location method, in BDS bis-generation, adopts passive location method, in locator meams and in radio frequency transmission frequency, a BDS generation and BDS bis-generation are all different, so in order to ensure the stability being transmitted data by BDS, Beidou satellite navigation system radio frequency chip 132 should comprise: Big Dipper generation satellite navigation system radio frequency chip, Beidou II satellite navigation system radio frequency chip and power divider, Big Dipper generation satellite navigation system radio frequency chip is connected with analog to digital conversion subelement respectively with Beidou II satellite navigation system radio frequency chip, and pass through power divider, be connected with Beidou satellite navigation system antenna.
Wherein, Big Dipper generation satellite navigation system radio frequency chip, for being sent to server by Big Dipper generation satellite communication network by pressure data; Beidou II satellite navigation system radio frequency chip, for being sent to server by Beidou II satellite communication network by pressure data.
By arranging Big Dipper generation satellite navigation system radio frequency chip and Beidou II satellite navigation system radio frequency chip in Beidou satellite navigation system radio frequency chip 132 respectively, make pressure sensor device by BDS to server transmission pressure data time, both Big Dipper generation satellite navigation system radio frequency chip can be passed through, also can send pressure data by Beidou II satellite navigation system radio frequency chip to server, ensure that the stability that data are transmitted.
Satellite navigation system baseband processing chip 130, analog to digital conversion subelement 131, satellite navigation system radio frequency chip 132 and satellite navigation system antenna 133 all can adopt existing any chip or circuit that can realize satellite communication network corresponding function, repeat no longer one by one here.
By arranging wireless transmission unit for subsequent use, when pressure data cannot be sent to server by wireless transmission unit by pressure sensor device, by satellite communication network, dam data can be sent to server, and avoid server and can not get pressure data that pressure sensor device sends and cause the defect of loss of data, and, because satellite communication network can cover each corner of the earth, so the server for receiving pressure data can be set up anywhere, and the hypertelorism of pressure sensor device and server need not be worried and cause dam data to transmit the problem of losing.
In order to ensure that data are transmitted, mobile communication system and satellite communication system can identify the identity of the pressure sensor device of access, therefore the identification module of mobile communication system and satellite communication system is also separately installed with at pressure sensor device, as: for the client identification module (Subscriber Identity Module, SIM card) 113 of mobile communication system and the Big Dipper card 114 for satellite communication system; SIM card 113 is connected with microprocessor 110 respectively with Big Dipper card 114.
In order to pressure transducer 10 can be made according to the pressure signal got, obtain pressure data, and the pressure data got is sent to microprocessor 110; Pressure transducer 10 comprises: pressure probe 100, signal amplifier 101, AD conversion unit 102, calibration circuit 103 and processing module 104.
In pressure transducer 10, the annexation of each parts is: signal amplifier 101 is connected with pressure probe 100, AD conversion unit 102 and calibration circuit 103 respectively; AD conversion unit 102 is connected with processing module 104; Processing module 104 is connected with microprocessor 110.
Wherein, in pressure transducer 10, the function of each parts is respectively:
Pressure probe 100, for obtaining pressure signal, and is sent to signal amplifier 101 by the pressure signal got.
Signal amplifier 101, for amplifying the pressure signal received, is then transferred to AD conversion unit 102.
Calibration circuit 103, verifies for the pressure signal received signal amplifier 101.
AD conversion unit 102, for carrying out analog to digital conversion to the pressure signal after amplification, and sends to processing module 104 by the pressure signal after analog to digital conversion.
Wherein, AD conversion unit 102, for the simulating signal got is converted to digital signal, makes pressure data can be processed in processing module 104.
Processing module 104, for processing the pressure signal received, obtains the pressure data that pressure signal is corresponding, and the pressure data obtained is sent to microprocessor 110.
In pressure transducer 10, pressure probe 100, signal amplifier 101, AD conversion unit 102, calibration circuit 103 and processing module 104 all can adopt existing any chip or circuit that can realize pressure transducer corresponding function, repeat no longer one by one here.
See Fig. 2, the present embodiment additionally provides a kind of data monitoring system 200, and this data monitoring system comprises server 201 and above-mentioned pressure sensor device 202;
Server 201 is communicated with pressure sensor device 202 with satellite communication network by mobile communications network;
Server 201, for being received the pressure data that pressure sensor device 202 transmits by mobile communications network or satellite communication network, and according to the pressure data received, is analyzed the security of dam.Server 201 periodically can receive the pressure data that pressure sensor device 202 transmits.
Wherein, server receives the time cycle of the pressure data that pressure sensor device 202 transmits, and what should not arrange is long, can be set to 30 seconds, 1 minute etc.Certainly, the time cycle that server receives the pressure data that pressure sensor device 202 transmits can also be arranged to other any durations, repeats no longer one by one here.
In sum, in the data monitoring system that the present embodiment provides, by the wireless transmission unit arranged in pressure sensor device, mobile communications network is utilized to be transferred in server by the pressure data of acquisition, so without the need to burying optical cable underground or arrange wireless relay apparatus between pressure sensor device and server, technician is not needed to safeguard optical cable and wireless relay apparatus yet, greatly reduce the manpower and materials cost obtaining dam pressure data, and due to the transmission range of mobile communications network wide, so when Servers installed is in the place that distance pressure sensor device is far, pressure data also simple like this mode can be transferred to server by mobile communications network by pressure sensor device, avoid the defect of the unstable easily obliterated data of data transmission in transmitting procedure as far as possible.
In order to enable pressure sensor device to determining during server transmission pressure data to use wireless transmission unit still to use wireless transmission unit for subsequent use, see Fig. 3, the present embodiment additionally provides a kind of data transmission method, and for pressure sensor device, this data transmission method comprises:
Step 300, acquisition pressure data.
In pressure sensor device, pressure data is that pressure transducer is transferred to processing unit.
Step 301, send check information by wireless transmission unit to server, check information is for determining the data that can server receive wireless transmission unit and send.
The content that check information comprises can be that preset any can determine can server receive data content by mobile communications network, such as: check information can be character string, numeric string; Or checking information can also be carry checking mark etc.
Wherein, checking mark is used to indicate the information of carrying this mark is check information.
Certainly, it is that any other makes server determine whether to receive the content of the data that wireless transmission unit sends that check information can also comprise, and repeats no longer one by one here.
Step 302, when reception server feedback confirmation time, send described pressure data by wireless transmission unit to server; Otherwise send pressure data by wireless transmission unit for subsequent use to server, acknowledge message, be used to indicate the verification message that server receives wireless transmission unit transmission.
Confirmation, be server after receiving check information, the feedback information to check information preset.
The content of confirmation, corresponding with the content that check information comprises, be character string or the numeric string of check information that is pre-set, that arrive for feedback reception.
By above description, pressure sensor device is before server transmission pressure data, first can send check information by wireless transmission unit to server, with to by mobile communications network to server send pressure data time, can server receive pressure data and carry out authentication operations, when after receiving the confirmation of replying check information of server feedback, then determine the data that server can be received pressure sensor device and sent to server by mobile communications network, authentication success, so pressure sensor device will send pressure data by wireless transmission unit to server, when not receiving the confirmation of replying check information of server feedback, the data that server can not be received pressure sensor device and sent to server by mobile communications network are described, failed authentication, so pressure sensor device will send pressure data by wireless transmission unit for subsequent use to server.
By the success or not of the operation of authentication, make pressure sensor device can according to current network condition, select wireless transmission unit or wireless transmission unit for subsequent use to server transmission pressure data, applying flexible and simple to operate.
Such authentication operations can be carried out before sending pressure data to server at each pressure sensor device, also authentication cycles can be set, authentication operations is carried out according to authentication cycles, such as: when authentication cycles is set to 1 hour, can so pressure sensor device will will send check information to server every 1 hour, carry out authentication to send pressure data by mobile communications network to server.
Certainly, authentication cycles also can be set as other any duration repeating here no longer one by one.
In order to confirm that pressure sensor device is after sending check information to server, whether have received the confirmation of server feedback, above-mentioned steps 302 comprises:
Judge the described confirmation whether receiving described server feedback in Preset Time.
When receiving the confirmation of server feedback in Preset Time, send pressure data by wireless transmission unit to server; Otherwise send pressure data by wireless transmission unit for subsequent use to server.
Preset Time generally can be set to a shorter duration, such as: 20 seconds, if pressure sensor device be the cycle send to server the pressure data collected, Preset Time duration so should be set and be less than pressure sensor device sends cycle duration from the pressure data collected to server, such as: pressure sensor device sends cycle duration from the pressure data collected to server is 30 seconds, so Preset Time duration should be set to 10 seconds, 15 seconds or 20 seconds, make before each pressure sensor device to send the pressure data collected to server, authentication operations can be completed, ensure the validity of pressure data transmission.
When pressure sensor device sends data to server, server can receive the data that pressure sensor device sends, and therefore, see Fig. 4, the present embodiment also provides a kind of data transmission method, and for server, this data transmission method comprises:
The information that step 400, reception pressure sensor device send;
Whether the information that step 401, judgement receive is check information;
Step 402, when the information determining to receive is check information, to pressure sensor device feedback acknowledgment information;
The pressure data that step 403, reception pressure sensor device send.
Wherein, receive the information of pressure sensor device transmission at server after, can judge whether the information received is check information by following two kinds of modes:
In the server, be previously stored with the content of check information, when whether the information judging to receive is check information, the checking information content of meeting reading pre-stored, compare with the information content received, if by comparison, find that the information content received is identical with the check information of storage, so determine that the information received is check information, otherwise determine that the information received is not check information.
Or server, after receiving information, can judge whether the information received carries checking mark, if the information received carries checking mark, so determines that the information received is check information, otherwise determines that the information received is not check information.
In sum, in the data transmission method that the present embodiment provides, by the wireless transmission unit arranged in pressure sensor device, mobile communications network is utilized to be transferred in server by the pressure data of acquisition, so without the need to burying optical cable underground or arrange wireless relay apparatus between pressure sensor device and server, technician is not needed to safeguard optical cable and wireless relay apparatus yet, greatly reduce the manpower and materials cost obtaining dam pressure data, and due to the transmission range of mobile communications network wide, so when Servers installed is in the place that distance pressure sensor device is far, pressure data also simple like this mode can be transferred to server by mobile communications network by pressure sensor device, avoid the defect of the unstable easily obliterated data of data transmission in transmitting procedure as far as possible.
The computer program of the data transmission method that various embodiments of the present invention provide, comprise the computer-readable recording medium storing program code, the instruction that program code comprises can be used for performing the method in previous methods embodiment, specific implementation see embodiment of the method, can not repeat them here.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a pressure sensor device, is characterized in that, described pressure sensor device comprises: pressure transducer, processing unit and wireless transmission unit; Described processing unit is connected with described pressure transducer and described wireless transmission unit respectively;
Described processing unit comprises: microprocessor, buffer and storer;
Described wireless transmission unit comprises: mobile communication baseband processing chip, analog-to-digital conversion module, mobile communication radio frequency chip and mobile communication antenna;
Described microprocessor is connected with described pressure transducer, described buffer, described storer and described mobile communication baseband processing chip respectively, and described mobile communication baseband processing chip is connected with described analog-to-digital conversion module; Described analog-to-digital conversion module is connected with described mobile communication radio frequency chip, and described mobile communication radio frequency chip is connected with described mobile communication antenna;
Described pressure transducer, for according to the pressure signal got, obtains pressure data, and the described pressure data got is sent to described microprocessor;
Described microprocessor, for receiving the pressure data that described pressure transducer sends, the described pressure data received is cached in described buffer, read the translation profile in described storer, according to the data receiver formula in configuration file, the described pressure data be buffered in described buffer is sent to described mobile communication baseband processing chip;
Described mobile communication baseband processing chip, for carrying out modulation treatment to described pressure data, the described pressure data after having carried out modulation treatment is sent to described analog-to-digital conversion module, the described pressure data after modulation, is transmitted in the mobile communication network;
Described analog-to-digital conversion module, for carrying out digital-to-analog conversion to described pressure data, and sends to described mobile communication radio frequency chip by described pressure data complete for digital-to-analog conversion;
Described mobile communication radio frequency chip, for described pressure data complete for digital-to-analog conversion is sent to server by mobile communication antenna, make described server, receive described pressure data by mobile communications network, according to receiving described pressure data, the security of dam is analyzed.
2. pressure sensor device according to claim 1, is characterized in that, described pressure sensor device also comprises wireless transmission unit for subsequent use;
Described wireless transmission unit for subsequent use comprises: satellite navigation system baseband processing chip, analog to digital conversion subelement, satellite navigation system radio frequency chip and satellite navigation system antenna;
Described satellite navigation system baseband processing chip is connected with described microprocessor and analog to digital conversion subelement respectively, described analog to digital conversion subelement is connected with described satellite navigation system radio frequency chip, and described satellite navigation system radio frequency chip is connected with described satellite navigation system antenna;
Described satellite navigation system baseband processing chip, for carrying out modulation treatment to described pressure data, described pressure data after having carried out modulation treatment is sent to described analog to digital conversion subelement, and the described pressure data after modulation, is transmitted in satellite communication network;
Described analog to digital conversion subelement, for carrying out digital-to-analog conversion to described pressure data, and sends to described satellite navigation system radio frequency chip by described pressure data complete for digital-to-analog conversion;
Described satellite navigation system radio frequency chip, for described pressure data complete for digital-to-analog conversion is sent to server by described satellite navigation system antenna, make described server, described pressure data is received by satellite communication network, according to receiving described pressure data, the security of dam is analyzed.
3. pressure sensor device according to claim 2, is characterized in that, described satellite navigation system baseband processing chip adopts Beidou satellite navigation system baseband processing chip; Satellite navigation system radio frequency chip adopts Beidou satellite navigation system radio frequency chip; Satellite navigation system antenna adopts Beidou satellite navigation system antenna.
4. pressure sensor device according to claim 3, it is characterized in that, described Beidou satellite navigation system radio frequency chip comprises: Big Dipper generation satellite navigation system radio frequency chip, Beidou II satellite navigation system radio frequency chip and power divider, described Big Dipper generation satellite navigation system radio frequency chip is connected with described analog to digital conversion subelement respectively with described Beidou II satellite navigation system radio frequency chip, and by described power divider, be connected with described Beidou satellite navigation system antenna;
Described Big Dipper generation satellite navigation system radio frequency chip, for being sent to described server by Big Dipper generation satellite communication network by described pressure data;
Described Beidou II satellite navigation system radio frequency chip, for being sent to described server by Beidou II satellite communication network by described pressure data.
5. pressure sensor device according to claim 1, is characterized in that, described pressure transducer, comprising: pressure probe, signal amplifier, AD conversion unit, calibration circuit and processing module;
Described signal amplifier is connected with described pressure probe, AD conversion unit and calibration circuit respectively; Described AD conversion unit is connected with described processing module; Described processing module is connected with described microprocessor;
Described pressure probe, for obtaining pressure signal, and is sent to described signal amplifier by the pressure signal got;
Described signal amplifier, for amplifying the described pressure signal received, is then transferred to described AD conversion unit;
Described calibration circuit, verifies for the described pressure signal received described signal amplifier;
Described AD conversion unit, for carrying out analog to digital conversion to the described pressure signal after amplification, and sends to described processing module by the described pressure signal after analog to digital conversion;
Described processing module, for processing the described pressure signal received, obtains the described pressure data that described pressure signal is corresponding, and the described pressure data obtained is sent to described microprocessor.
6. a data monitoring system, is characterized in that, described data monitoring system comprises the pressure sensor device described in server and claim 1-5;
Described server is communicated with described pressure sensor device with satellite communication network by mobile communications network;
Described server, for being received the pressure data of described pressure sensor device transmission by mobile communications network or satellite communication network, and according to the described pressure data received, is analyzed the security of dam.
7. data monitoring system according to claim 6, is characterized in that, described server, periodically receives the pressure data of described pressure sensor device transmission.
8. a data transmission method, for pressure sensor device, is characterized in that, described data transmission method comprises:
Obtain pressure data;
Send check information by wireless transmission unit to server, described check information is for determining that can described server receive the data of described wireless transmission unit transmission;
When receiving the confirmation of described server feedback, send described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server, described acknowledge message, be used to indicate the described verification message that described server receives the transmission of described wireless transmission unit.
9. data transmission method according to claim 8, is characterized in that, described when receiving the confirmation of described server feedback, sends described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server to comprise:
Judge the described confirmation whether receiving described server feedback in Preset Time;
When receiving the described confirmation of described server feedback in Preset Time, send described pressure data by described wireless transmission unit to described server; Otherwise send described pressure data by described wireless transmission unit for subsequent use to described server.
10. a data transmission method, for server, is characterized in that, described data transmission method comprises:
Receive the information that pressure sensor device sends;
Judge whether the information received is check information;
When the information determining to receive is check information, to described pressure sensor device feedback acknowledgment information;
Receive the pressure data that described pressure sensor device sends.
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