CN202402078U - Frequency-hopping time-staggered transceiving underground personnel positioning system - Google Patents
Frequency-hopping time-staggered transceiving underground personnel positioning system Download PDFInfo
- Publication number
- CN202402078U CN202402078U CN2011204354844U CN201120435484U CN202402078U CN 202402078 U CN202402078 U CN 202402078U CN 2011204354844 U CN2011204354844 U CN 2011204354844U CN 201120435484 U CN201120435484 U CN 201120435484U CN 202402078 U CN202402078 U CN 202402078U
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- card
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- substation
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Abstract
The utility model discloses a frequency-hopping time-staggered transceiving underground personnel positioning system, which comprises an identification card (1), a receiving antenna (2), a transmitting antenna (3), power amplification modules (4 and 5) and a card reading substation (6). The card reading substation (6) and the identification card (1) are used for signal transceiving by different frequency points through the receiving antenna (2) and the transmitting antenna (3), and the receiving antenna (2) and the transmitting antenna (3) are provided with the power amplification modules respectively to improve transmitting power and receiving sensitivity. Signals are transmitted to the card reading substation by a fixed frequency point through the identification card worn by underground personnel, the card reading substation receives the signals transmitted by the identification card through the receiving antenna and transmits answer signals to the identification card by another frequency point through the transmitting antenna after receiving the signals, and the card reading substation transmits all read data of the identification card to a ground data transmission substation through a CAN (controller area network) bus, so that ground monitoring personnel can conveniently monitor operation conditions of the underground personnel.
Description
Technical field
The utility model relates to personnel in the pit's navigation system field, particularly a kind of frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time.
Background technology
The RFID wireless recognition technique has obtained extensive use in the coal mine down-hole personnel navigation system at present; But two-way communication realizes remote identification and has major defect: in existing technology; After the distance that Card Reader substation and tag card are separated by surpasses certain decipherment distance; Just lose communication between Card Reader substation and the tag card, can't transmit data, range of application is received limitation.Cause the Card Reader substation to receive receiving the signal of too much mistake receiving outer signals to disturb in the tag card signal and cause the bit error rate high.On the other hand, when the same time of Card Reader substation receives a lot of tag card signals, be difficult to realize ten thousand/skip rate of GB regulation, a lot of companies have all dropped into lot of manpower and material resources and have solved this problem.
The utility model content
The purpose of the utility model is the present situation to prior art, and a kind of frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time is provided, and makes ground grasp each personnel in the pit's position and whole personnel in the pit's number in real time.
For realizing above-mentioned purpose; The utility model provides a kind of frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time; Comprise: tag card (1), reception antenna (2), transmitting antenna (3), power amplifier module (4,5), Card Reader substation (6); Reception antenna (2) and transmitting antenna (3) are passed through with tag card (1) in Card Reader substation (6); Adopt different frequencies to carry out signal transmitting and receiving, signal transmitting and receiving adopts the transmit-receive technology of staggering the time, and respectively establishes a power amplifier module raising transmitting power and receiving sensitivity at reception antenna (2) and transmitting antenna (3).
Said reception antenna (2) frequency point setting is 2.43GHz, and transmitting antenna (3) frequency point setting is that frequency is 2.44GHz.
Said tag card (1) possesses automatic arousal function in the identification range of Card Reader substation (6), waits for Card Reader substation (6) confirmation function and sleep mode.
The beneficial effect of the utility model: the frequency hopping of the utility model wireless receiving and dispatching personnel in the pit navigation system of staggering the time; The tag card of wearing through the personnel in the pit with signal with one fixedly frequency send to the Card Reader substation; The Card Reader substation receives the signal that tag card sends through reception antenna; After receiving signal; The Card Reader substation is sent answer signal through transmitting antenna to tag card with another frequency, and the transfer of data of all tag cards that the Card Reader substation will be read through the CAN bus again gathers to data terrestrial transmission substation, so that ground monitoring personnel control personnel in the pit's operation situation.
Description of drawings
Fig. 1 is the utility model frequency hopping wireless receiving and dispatching personnel in the pit navigation system theory diagram of staggering the time.
The specific embodiment
To combine accompanying drawing to doing further explain in the utility model below.
With reference to shown in Figure 1; The utility model provides a kind of frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time; Comprise: tag card (1), reception antenna (2), transmitting antenna (3), power amplifier module (4,5), Card Reader substation (6); Reception antenna (2) and transmitting antenna (3) are passed through with tag card (1) in Card Reader substation (6); Adopt different frequencies to carry out signal transmitting and receiving, signal transmitting and receiving adopts the transmit-receive technology of staggering the time, and reception antenna (2) is respectively established a power amplifier module raising transmitting power and receiving sensitivity with transmitting antenna (3).
Said reception antenna (2) is responsible for receiving tag card (1) and is sent signal, and transmitting antenna (3) is responsible for sending confirmation signal to tag card (1), and reception antenna (2) frequency point setting is 2.43GHz, and transmitting antenna (3) frequency point setting is that frequency is 2.44GHz.Said tag card (1) possesses automatic arousal function in the identification range of Card Reader substation (6), waits for Card Reader substation (6) confirmation function and sleep mode.
1, tag card sends signal to the Card Reader substation, and Card Reader substation feedback acknowledgment signal is given tag card, adopts the frequency hopping transmit-receive technology to realize signal transmitting and receiving therebetween.
Adopt the 2.4GHz frequency hopping to realize the reception of Card Reader substation and send frequency being in different frequent points; Adopt 2.43GHz when receiving the signal that tag card sends; When tag card transmits, adopt 2.44GHz, avoid receiving signal and transmit between the phase mutual interference.When especially many tag cards were concurrent, if adopt identical frequency transmitting/receiving wireless signal, the collision between signal and the signal was very serious, cause the part tag card to discern continuously, and the part tag card can't be discerned, and has increased the skip rate.Adopt the frequency hopping transmit-receive technology can the concurrent quantity of maximum be promoted to 2-3 before doubly.
2, tag card sends signal to the Card Reader substation, and Card Reader substation feedback acknowledgment signal is given tag card, adopts the transmit-receive technology of staggering the time to realize signal transmitting and receiving therebetween.
Tag card receive with confiscate two kinds of situation of Card Reader substation response message under dormancy time different.Outside the identification range of Card Reader substation, tag card is all outwards launched wireless messages by the mode of 0.5Hz.In case in the entering identification range, tag card wakes up from resting state automatically, at first accomplish ID number transmission after waking up, change receiver module immediately over to and wait for 2ms.If in the wait process, receive the information that the Card Reader substation is returned, get into resting state immediately, dormancy time is 10s; If do not receive the response message of Card Reader substation in the wait process, wait changes resting state over to after finishing, and dormancy time is 2s.It is 1 minute that the tag card of receiving Card Reader substation response message (response message has uniqueness) is adjusted dormancy time immediately; All the other do not receive that the tag card of response message has 30 chances not bump with this card in this minute; Guaranteed the reliability of tag card wireless identification; Effectively reduce the probability that the tag card wireless signal collides each other, also prolonged the application life of tag card battery simultaneously.
3, tag card sends signal to the Card Reader substation, and Card Reader substation feedback acknowledgment signal is given tag card, adopts the double antenna transmit-receive technology to realize signal transmitting and receiving therebetween.
The double antenna transmitting-receiving: the Card Reader substation in the personnel location system adopts double antenna to realize transmission-receiving function, and an antenna is realized the wireless receiving function, mainly is responsible for gathering tag card information; An other antenna is realized emission function, the main transmission answer signal of being responsible for.Because the frequency that is provided with is different, do not disturb mutually between the two, improve the reliability of two-way communication, effectively reduce the skip rate of Card Reader substation.
4, transfer of data substation combined data.
The Card Reader substation is through the CAN485 bus, and to the transfer of data substation, the transfer of data substation is aggregated into ground monitoring system with data with transfer of data.
5, wireless receiving end and the transmitting terminal in the Card Reader substation increases a power amplifier module.
Wireless receiving end and transmitting terminal in the Card Reader substation increase a power amplifier module, and radio transmitted power is improved 20dB, and receiving sensitivity improves 6dB.If the decipherment distance that doubles by increase 6dB calculates, the distance of Card Reader substation identification marking card doubles; And tag card receives the distance increase of Card Reader substation information more than 3 times.This has just realized remote (more than 80 meters) identification of tag card and Card Reader substation.
Claims (3)
1. frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time; It is characterized in that; Comprise: tag card (1), reception antenna (2), transmitting antenna (3), power amplifier module (4,5), Card Reader substation (6); Reception antenna (2) and transmitting antenna (3) are passed through with tag card (1) in Card Reader substation (6); Adopt different frequencies to carry out signal transmitting and receiving, signal transmitting and receiving adopts the transmit-receive technology of staggering the time, and respectively establishes a power amplifier module raising transmitting power and receiving sensitivity at reception antenna (2) and transmitting antenna (3).
2. the frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time according to claim 1 is characterized in that said reception antenna (2) frequency point setting is 2.43GHz, and transmitting antenna (3) frequency point setting is that frequency is 2.44GHz.
3. the frequency hopping wireless receiving and dispatching personnel in the pit navigation system of staggering the time according to claim 1 is characterized in that, said tag card (1) possesses in the identification range of Card Reader substation (6) automatically arousal function, waits for Card Reader substation (6) confirmation function and sleep mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204354844U CN202402078U (en) | 2011-10-27 | 2011-10-27 | Frequency-hopping time-staggered transceiving underground personnel positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204354844U CN202402078U (en) | 2011-10-27 | 2011-10-27 | Frequency-hopping time-staggered transceiving underground personnel positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402078U true CN202402078U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204354844U Expired - Fee Related CN202402078U (en) | 2011-10-27 | 2011-10-27 | Frequency-hopping time-staggered transceiving underground personnel positioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202402078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550892A (en) * | 2013-10-26 | 2014-02-05 | 温州新高原物联网科技有限公司 | Internet of things-based fire control supervisory system |
-
2011
- 2011-10-27 CN CN2011204354844U patent/CN202402078U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550892A (en) * | 2013-10-26 | 2014-02-05 | 温州新高原物联网科技有限公司 | Internet of things-based fire control supervisory system |
| CN103550892B (en) * | 2013-10-26 | 2016-04-13 | 温州新高原物联网科技有限公司 | Based on the firefighting supervision system of Internet of Things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Xiuzhao Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20191027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |