CN106507402B - Data retransmission control method of GPS positioning terminal - Google Patents
Data retransmission control method of GPS positioning terminal Download PDFInfo
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- CN106507402B CN106507402B CN201610952861.9A CN201610952861A CN106507402B CN 106507402 B CN106507402 B CN 106507402B CN 201610952861 A CN201610952861 A CN 201610952861A CN 106507402 B CN106507402 B CN 106507402B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010295 mobile communication Methods 0.000 claims abstract description 32
- 230000002159 abnormal effect Effects 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to a data retransmission control method of a GPS positioning terminal, which is characterized in that when a downlink channel of a mobile communication network is abnormal and a central platform cannot successfully send response data to the GPS positioning terminal through the mobile communication network, the response data is sent to the GPS positioning terminal through a short message channel, and the GPS positioning terminal identifies whether the downlink channel of the mobile communication network is abnormal or not by judging whether the response data comes from the short message channel or not, so that the situation that the GPS positioning terminal frequently retransmits service data under the condition that the response is not received can be avoided, the traffic is wasted, and troubles are brought to the central platform.
Description
Technical Field
The invention relates to a data retransmission control method of a GPS positioning terminal.
Background
In the existing GPS positioning terminal data retransmission technology, when a downlink channel of a mobile communication network is abnormal, a central platform receives data reported by a terminal, and the terminal may not receive data responded by the central platform within overtime, which causes the terminal to frequently retransmit the data, not only wastes traffic, but also brings trouble to a central platform user.
Disclosure of Invention
The invention aims to provide a data retransmission control method of a GPS positioning terminal, which can stop retransmitting service data when a downlink channel of a mobile communication network is abnormal, and can avoid the GPS positioning terminal from retransmitting data frequently.
The invention relates to a data retransmission control method of a GPS positioning terminal, which divides data reported by the GPS positioning terminal through a mobile communication network into service data and heartbeat data, the GPS positioning terminal adds serial numbers to each piece of service data to be reported, a central platform records the serial number of the latest piece of service data, and judges whether the serial number of the service data reported by the GPS positioning terminal later is consistent with the recorded serial number; if the data are consistent, sending response data to the GPS positioning terminal through the short message; if the GPS positioning terminal receives response data of the central platform through a short message, recording an abnormal position and abnormal time, and starting to judge whether the distance between the current position and the abnormal position exceeds a threshold value or whether the current time minus the abnormal time exceeds the threshold value; if the mobile communication network is the heartbeat data, the heartbeat data is sent to the central platform regularly through the mobile communication network, the central platform receives the heartbeat data reported by the GPS positioning terminal, the heartbeat response data is sent to the GPS positioning terminal through the mobile communication network, if the GPS positioning terminal receives the heartbeat response data, the heartbeat data is stopped being sent, and the next service data and the serial number thereof are continuously sent through the mobile communication network.
When the downlink channel of the mobile communication network is abnormal and the central platform can not successfully send the response data to the GPS positioning terminal through the mobile communication network, the response data is sent to the GPS positioning terminal through the short message channel, and the GPS positioning terminal identifies whether the downlink channel of the mobile communication network is abnormal or not by judging whether the response data comes from the short message channel or not, so that the problem that the GPS positioning terminal frequently resends the service data (such as alarm data and the like) under the condition that the GPS positioning terminal cannot receive the response due to the abnormality of the downlink channel of the mobile communication network can be avoided, the traffic is wasted, and troubles are brought to the central platform.
Detailed Description
The invention relates to a data retransmission control method of a GPS positioning terminal, which comprises the GPS positioning terminal and a central platform for data interaction with the GPS positioning terminal, wherein the central platform also comprises a short message gateway, and the method specifically comprises the following steps:
step 1, dividing data reported to a central platform by a GPS positioning terminal through a mobile communication network into service data and heartbeat data;
step 2, setting transmission overtime length, an abnormal distance threshold and an abnormal time interval threshold on a central platform, and sending the preset parameters to a GPS positioning terminal for storage;
step 3, when the GPS positioning terminal reports the service data to the central platform through the mobile communication network, generating a serial number of the service data, and sending the serial number and the service data to the central platform;
step 4, the central platform judges whether the serial number of the received service data is stored in the storage unit, if the serial number does not exist, the received serial number is stored in the storage unit of the central platform, and the previously stored serial number is replaced; if the serial number exists, the central platform sends response data to the GPS positioning terminal through a short message;
after the GPS positioning terminal reports the service data, when the network is normal, the GPS positioning terminal receives the response data from the central platform, and then the GPS positioning terminal reports the service data of the next serial number, for the central platform, if the service data of a certain serial number is received, the service data of the same serial number is received, namely the GPS positioning terminal does not receive the response data, and the service data of the original serial number is retransmitted, so that the downlink channel of the mobile communication network is considered to be abnormal at this time;
step 5, after reporting the service data to the central platform, the GPS positioning terminal judges whether the response of the central platform is received within the transmission overtime time, if not, the latest reported serial number and the service data are retransmitted; if the answer is received, whether the answer is from a mobile communication network or a short message is judged, if the answer is from the mobile communication network, the GPS positioning terminal continues to send the next service data and the serial number thereof, if the answer is from the short message, the GPS positioning terminal stops sending the service data to the central platform, simultaneously acquires the current position as an abnormal position, records the current time as an abnormal time, stores the abnormal position in a storage unit, and starts a timer;
step 6, the GPS positioning terminal starts to judge whether the distance between the current position and the abnormal position exceeds an abnormal distance threshold value, and if the distance between the current position and the abnormal position exceeds the abnormal distance threshold value, heartbeat data are sent to the central platform through the mobile communication network at regular time; or, the GPS positioning terminal starts to judge whether the current time minus the abnormal time exceeds the abnormal time interval threshold, and if the current time minus the abnormal time exceeds the abnormal time interval threshold, the GPS positioning terminal sends heartbeat data to the central platform through the mobile communication network at regular time:
7, the central platform receives heartbeat data reported by the GPS positioning terminal and sends heartbeat response data to the GPS positioning terminal through the mobile communication network;
and step 8, the GPS positioning terminal receives the heartbeat response data, stops sending the heartbeat data, closes the timer and continues to send next service data and serial numbers thereof through the mobile communication network.
The invention is characterized in that: when the downlink channel of the mobile communication network is abnormal and the central platform can not successfully send the response data to the GPS positioning terminal through the mobile communication network, the response data is sent to the GPS positioning terminal through the short message channel, and the GPS positioning terminal identifies whether the downlink channel of the mobile communication network is abnormal or not by judging whether the response data comes from the short message channel or not, so that the problem that the GPS positioning terminal frequently resends the service data under the condition that the response cannot be received due to the abnormal downlink channel of the mobile communication network, not only the flow is wasted, but also the trouble is brought to the central platform can be avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (1)
1. A data retransmission control method of a GPS positioning terminal is characterized in that: dividing data reported by a GPS positioning terminal through a mobile communication network into service data and heartbeat data, adding a serial number to each piece of service data to be reported by the GPS positioning terminal, recording the serial number of the latest piece of service data by a central platform, and judging whether the serial number of the service data reported by the GPS positioning terminal later is consistent with the recorded serial number or not; if the data are consistent, sending response data to the GPS positioning terminal through the short message; if the GPS positioning terminal receives response data of the central platform through a short message, recording an abnormal position and abnormal time, and starting to judge whether the distance between the current position and the abnormal position exceeds a threshold value or whether the current time minus the abnormal time exceeds the threshold value; if the mobile communication network is the heartbeat data, the heartbeat data is sent to the central platform regularly through the mobile communication network, the central platform receives the heartbeat data reported by the GPS positioning terminal, the heartbeat response data is sent to the GPS positioning terminal through the mobile communication network, if the GPS positioning terminal receives the heartbeat response data, the heartbeat data is stopped being sent, and the next service data and the serial number thereof are continuously sent through the mobile communication network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952861.9A CN106507402B (en) | 2016-11-03 | 2016-11-03 | Data retransmission control method of GPS positioning terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952861.9A CN106507402B (en) | 2016-11-03 | 2016-11-03 | Data retransmission control method of GPS positioning terminal |
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| Publication Number | Publication Date |
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| CN106507402A CN106507402A (en) | 2017-03-15 |
| CN106507402B true CN106507402B (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610952861.9A Active CN106507402B (en) | 2016-11-03 | 2016-11-03 | Data retransmission control method of GPS positioning terminal |
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| CN107612661B (en) * | 2017-09-07 | 2021-06-22 | 四川九洲北斗导航与位置服务有限公司 | Data communication method and device |
Citations (4)
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|---|---|---|---|---|
| CN101431732A (en) * | 2008-12-16 | 2009-05-13 | 中国移动通信集团四川有限公司 | Method for guaranteeing sending message arrival of service support system |
| CN202334907U (en) * | 2011-08-08 | 2012-07-11 | 深圳市冠润达电子有限公司 | System realizing emergency wireless communication |
| US8412226B2 (en) * | 2008-06-24 | 2013-04-02 | Google Inc. | Mobile phone locator |
| CN103281161A (en) * | 2013-05-17 | 2013-09-04 | 深圳市康凯斯信息技术有限公司 | Communication method for GPS (Global Positioning System) positioning terminal and background server |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123141B2 (en) * | 2003-08-20 | 2006-10-17 | Contestabile Robert A | Electronic monitoring systems and methods |
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- 2016-11-03 CN CN201610952861.9A patent/CN106507402B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8412226B2 (en) * | 2008-06-24 | 2013-04-02 | Google Inc. | Mobile phone locator |
| CN101431732A (en) * | 2008-12-16 | 2009-05-13 | 中国移动通信集团四川有限公司 | Method for guaranteeing sending message arrival of service support system |
| CN202334907U (en) * | 2011-08-08 | 2012-07-11 | 深圳市冠润达电子有限公司 | System realizing emergency wireless communication |
| CN103281161A (en) * | 2013-05-17 | 2013-09-04 | 深圳市康凯斯信息技术有限公司 | Communication method for GPS (Global Positioning System) positioning terminal and background server |
Non-Patent Citations (1)
| Title |
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| 基于GPS手机的定位终端软件设计与研究;周源,张庆全,林富明;《测绘与空间地理信息》;20101025;全文 * |
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| CN106507402A (en) | 2017-03-15 |
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Address after: 361009 Xiamen Torch High tech Zone Software Park Innovation Building C Area 303-E, Xiamen, Fujian Province Patentee after: Xiamen Yaxun Zhilian Technology Co.,Ltd. Country or region after: China Address before: 361009 No.46, guanri Road, phase II, software park industrial base, Xiamen City, Fujian Province Patentee before: XIAMEN YAXON NETWORK Co.,Ltd. Country or region before: China |