CN211152216U - Positioning device and communication system - Google Patents
Positioning device and communication system Download PDFInfo
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- CN211152216U CN211152216U CN202020218365.2U CN202020218365U CN211152216U CN 211152216 U CN211152216 U CN 211152216U CN 202020218365 U CN202020218365 U CN 202020218365U CN 211152216 U CN211152216 U CN 211152216U
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Abstract
The utility model discloses a positioner and communication system relates to the communication technology field, can solve the great problem of positioning error among the prior art. The device is configured to directionally transmit the broadcast data packet and comprises at least two directional antennas, a radio frequency switch, a first wireless communication module and a first central processing unit, wherein the first central processing unit is connected with the first wireless communication module, the first wireless communication module is connected with the radio frequency switch, and the radio frequency switch is connected with at least one directional antenna.
Description
Technical Field
The utility model relates to the field of communication, especially, relate to a positioner and communication system.
Background
With the proposal of the concept of sharing a single vehicle, the body shadow of the sharing single vehicle can be seen in many occasions, such as schools, factories and the like. Taking schools as an example, since the campus areas of many schools are usually large, in order to facilitate the activities of students in the campus, many merchants choose to release a sharing bicycle in the campus, and the sharing bicycle in the campus is also popular with more and more people.
Generally, the existing campus sharing bicycle generally adopts the GPS positioning technology, which is to measure the position of the GPS device on the ground by receiving signals of at least three satellites located in different positions in the sky. However, the GPS positioning technology is easily affected by high buildings, forests and bad weather, and the positioning error is large, so that the normal operation and maintenance work of the vehicle may be affected.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, those skilled in the art have developed a positioning apparatus and a communication system to solve the problem of large positioning error in the prior art.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
in a first aspect, an embodiment of the present application provides a positioning apparatus configured to directionally transmit a broadcast packet, including at least two directional antennas, a radio frequency switch, a first wireless communication module, and a first central processing unit, where the first central processing unit is connected to the first wireless communication module, the first wireless communication module is connected to the radio frequency switch, and the radio frequency switch is connected to at least one directional antenna.
Optionally, the at least two directional antennas include a first directional antenna and a second directional antenna, a signal transmission direction of the first directional antenna is a first direction, a signal transmission direction of the second directional antenna is a second direction, and an angle between the first direction and the second direction is between (60 ° and 180 °).
Optionally, the first central processing unit is configured to control the first wireless communication module to transmit the broadcast data packet according to a preset period; the radio frequency switch is configured to select one directional antenna from the at least two directional antennas as a directional antenna for transmitting broadcast data packets according to the indication of the first central processor; the first wireless communication module is configured to transmit a broadcast packet including a first directional antenna identification in the first direction through the first directional antenna or transmit a broadcast packet including a second directional antenna identification in the second direction through the second directional antenna according to the selection of the radio frequency switch.
Optionally, the transmission frequencies of the first directional antenna and the second directional antenna are the same.
Optionally, the transmission frequency of the first directional antenna and the second directional antenna is 2.4 GHZ.
Optionally, the transmitting power of the positioning device is between (-10dBm, -5 dBm).
Optionally, the time interval between the first directional antenna transmitting the broadcast packet to the first direction and the second directional antenna transmitting the broadcast packet to the second direction is in the range of (1, 5) milliseconds.
Optionally, the first included angle and the second included angle are located within a range of (60 ° and 90 °), the first included angle is an included angle between the first directional antenna and a surface on which the positioning device is mounted, and the second included angle is an included angle between the second directional antenna and the surface on which the positioning device is mounted.
In a second aspect, an embodiment of the present application provides a positioning apparatus configured to receive a broadcast packet sent directionally, where the positioning apparatus includes an omnidirectional antenna, a second wireless communication module, and a second central processing unit, where the second central processing unit is connected to the second wireless communication module, and the second wireless communication module is connected to the omnidirectional antenna.
Optionally, the positioning device further comprises a vibration sensor and a buzzer, and the vibration sensor and the buzzer are connected with the second central processing unit; the second wireless communication module is configured to detect the directionally transmitted broadcast data packet and transmit the broadcast data packet received through the omnidirectional antenna to the second central processing unit if the vibration frequency of the vibration sensor exceeds a preset threshold; the second central processing unit is configured to wait for receiving other broadcast data packets in case of receiving the broadcast data packet including the first directional antenna identification, and control the buzzer to emit an alarm sound in case of receiving the broadcast data packet including the second directional antenna identification.
In a third aspect, an embodiment of the present application provides a communication system, where the communication system includes any one or more of the following: the positioning device described in the first aspect and in various alternative implementations of the first aspect, and the positioning device described in the second aspect and in various alternative implementations of the second aspect.
The utility model provides a positioner has following technological effect: on one hand, the positioning device comprising the directional antenna is arranged on the using boundary of the shared bicycle, so that the positioning device comprising the omnidirectional antenna can be ensured to receive the broadcast data packet sent by the positioning device comprising the directional antenna, and the influence of high buildings, woods and severe weather on signal transmission is avoided, thereby reducing the positioning error of the shared bicycle; on the other hand, the positioning device comprising the omnidirectional antenna can determine the position of the shared bicycle according to the received broadcast data packets comprising different identifications by periodically sending the broadcast data packets outwards through the directional antenna in at least one positioning device comprising the directional antenna, and prompt the user through the buzzer when the shared bicycle use area is exceeded, so that the user can be prevented from being charged due to the use in an excess area.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of a communication system provided by the present invention;
fig. 2 is an installation schematic diagram of a first positioning device provided by the present invention;
fig. 3 is a schematic view of a coverage area of a directional antenna in a first positioning apparatus provided by the present invention;
fig. 4 is an installation diagram of the first positioning device provided by the present invention when the number is two;
fig. 5 is a schematic view of an installation angle of a directional antenna in a first positioning device according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.
Generally, the sharing bicycle can limit the use of a user in a certain area through its own positioning function. For example, a campus sharing bicycle may only be used in a school district, and if the campus sharing bicycle exceeds the range of the school district, the campus sharing bicycle may cause additional charges to users or fail to be locked normally. Although the existing shared bicycle generally has a positioning function, the positioning error of the prior art is large, so that on one hand, inconvenience is brought to operation and maintenance personnel, and on the other hand, a user may have to pay for the use of the over-area because the user cannot clearly share the use area of the bicycle.
As shown in fig. 1, the present embodiment provides a communication system including at least one first positioning device 100 and a second positioning device 200 communicatively coupled to the at least one first positioning device 100. For example, if the usage range of the campus sharing bicycle is in a campus, the campus doorway may be the boundary of the usage range of the campus sharing bicycle, and therefore, the first positioning device 100 may be a beacon installed at the campus doorway. The second positioning device 200 may be a positioning device installed on the shared bicycle.
With continued reference to fig. 1, the first positioning device 100 may be configured to directionally transmit the broadcast data packet, and the first positioning device 100 may include at least two directional antennas 110, a radio frequency switch 120, a first wireless communication module 130, and a first central processor 140. The first central processing unit 140 may be connected to the first wireless communication module 130, the first wireless communication module 130 may be connected to the radio frequency switch 120, and the radio frequency switch 120 may be connected to at least one of the at least two directional antennas 110.
With continued reference to fig. 1, the second positioning device 200 may be configured to receive the broadcast data packet directionally transmitted by the first positioning device 100, and the second positioning device 200 may include an omnidirectional antenna 210, a second wireless communication module 220 and a second central processor 250. The second central processor 250 may be connected to the second wireless communication module 220, and the second wireless communication module 220 may be connected to the omnidirectional antenna 210.
Alternatively, as shown in fig. 2, the first positioning device 100 may be installed on a side wall of the school door, and at least two directional antennas 110, i.e., a first directional antenna 111 and a second directional antenna 112, may be included in the first positioning device 100. The signal transmission direction of the first directional antenna 111 is a first direction, the coverage area of the first directional antenna 111 in the first direction may be a usage area of the campus sharing bicycle, the signal transmission direction of the second directional antenna 112 is a second direction, an included angle between the first direction and the second direction is (60 degrees, 180 degrees), and the coverage area of the second directional antenna 112 in the second direction may be an area where the usage of the campus sharing bicycle is forbidden.
Optionally, the first central processor 140 may be configured to control the first wireless communication module 130 to transmit the broadcast data packet according to a preset period, and the radio frequency switch 120 may be configured to select one directional antenna from the at least two directional antennas 110 as the directional antenna for transmitting the broadcast data packet according to the instruction of the first central processor 140; the first wireless communication module 130 may be configured to transmit a broadcast packet including a first directional antenna identification to the first direction through the first directional antenna 111 or transmit a broadcast packet including a second directional antenna identification to the second direction through the second directional antenna 112 according to the selection of the rf switch 120.
Alternatively, the rf switch 120 may periodically and alternately select the first directional antenna 111 and the second directional antenna 112. One scenario is that the number of times that the radio frequency switch 120 selects the first directional antenna 111 in one period is the same as the number of times that the radio frequency switch 120 selects the second directional antenna 112 in one period, and the other scenario is that the number of times that the radio frequency switch 120 selects the first directional antenna 111 in one period is different from the number of times that the radio frequency switch selects the second directional antenna 112 in one period. The method can be determined according to actual use requirements, and is not limited in the embodiment of the application.
For example, taking the example that the number of times the radio frequency switch 120 selects the first directional antenna 111 is different from the number of times the radio frequency switch 120 selects the second directional antenna 112 in one period, if the period is 3 seconds, the number of times the radio frequency switch 120 selects the first directional antenna 111 is 1, and the number of times the radio frequency switch 120 selects the second directional antenna 112 is 2, the radio frequency switch 120 may select the first directional antenna 111 in the 1 st second, and select the second directional antenna 112 in both the 2 nd second and the 3 rd second.
It can be understood that the first central processing unit 130 can control the channel of the first wireless communication module 130 through the rf switch 120, so that the first wireless communication module 130 can only send the broadcast data packet including the first directional antenna identifier to the first direction through the first directional antenna 111 or send the broadcast data packet including the second directional antenna identifier to the second direction through the second directional antenna 112 at the same time.
Optionally, the transmission frequency of the first directional antenna and the transmission frequency of the second directional antenna may be the same, for example, the transmission frequency of the first directional antenna and the transmission frequency of the second directional antenna may be 2.4 GHZ. Adopt 2.4GHZ as the frequency of first positioner 100, on the one hand, can satisfy the work demand of first positioner 100, on the other hand, if the frequency is too high not only can make first positioner 100 bulky, power consumption and hardware cost are high, can promote the signal diffraction and the reflectance of first positioner 100 moreover to can only receive the broadcast data package that a directional antenna sent when the one side of first positioner 100 can't guarantee to share the bicycle.
Alternatively, the transmit power of the first positioning device 100 may be in the range of (-10dBm, -5 dBm). The transmitting power of the first positioning apparatus 100 can be configured by software matched with the first positioning apparatus 100, and because the gain of the directional antenna is high, if the frequency of the first positioning apparatus 100 is 2.4GHZ, the transmitting power of the first positioning apparatus 100 can be adjusted between (-10dBm, -5dBm), thereby ensuring that the range covered by the first positioning apparatus 100 is within 15 meters to 50 meters.
Optionally, the second positioning device 200 may further include a vibration sensor 230 and a buzzer 240, and the vibration sensor 230 and the buzzer 240 are connected to the second central processing unit 250. The second wireless communication module 220 may be configured to detect the broadcast packet transmitted by the first wireless communication module 120 and transmit the broadcast packet received through the omnidirectional antenna 210 to the second central processor 250, in case the vibration frequency detected by the vibration sensor 230 exceeds a preset threshold. Second central processor 250 may be configured to wait to receive other broadcast packets in case of receiving a broadcast packet including a first directional antenna identification, or to control buzzer 240 to emit an alert tone in case of receiving a broadcast packet including a second directional antenna identification.
Optionally, if the time interval between the first directional antenna 111 sending the broadcast packet to the first direction and the second directional antenna 112 sending the broadcast packet to the second direction is too small, the second central processing unit 250 may not be able to process the broadcast packet received by the second wireless communication module 220 in time, and therefore, the time interval between the first directional antenna sending the broadcast packet to the first direction and the second directional antenna sending the broadcast packet to the second direction may be within a range of (1, 5) milliseconds.
The interaction process between the first positioning device 100 and the second positioning device 200 in the present application will be described in detail with reference to examples.
For example, the first positioning device 100 may periodically transmit the broadcast packet through the first wireless communication module 120. When the campus sharing bicycle is in a riding state or in a locked state, the vibration sensor 230 may periodically detect a vibration frequency of the second positioning device 200, and send a detected vibration frequency value to the second central processing unit 250, after receiving the vibration frequency value, the second central processing unit 250 may compare the vibration frequency value with a preset threshold, if the vibration frequency value exceeds the preset threshold, the second central processing unit 250 may send a determination instruction to the second wireless communication module 220, where the determination instruction may be used to instruct the second wireless communication module 220 to detect a broadcast data packet, and after receiving the determination instruction, the second wireless communication module 220 may detect the broadcast data packet sent by the first wireless communication module 120 through the omnidirectional antenna 210. Thereafter, the second wireless communication module 220 may transmit the detected broadcast packet to the second central processor 250. The second central processor 250 may determine the location of the campus sharing bicycle by parsing the broadcast packet detected by the second wireless communication module 220.
Specifically, as shown in fig. 3 (a), if the second central processing unit 250 determines that the broadcast packet detected by the second wireless communication module 220 includes the first directional antenna identifier by analyzing the broadcast packet, it indicates that the second positioning device 200 is located in the area where the campus sharing bicycle is used, and then the second central processing unit 250 may wait to receive another broadcast packet sent by the second wireless communication module 220. As shown in fig. 3 (b), if the second central processing unit 250 determines that the broadcast packet detected by the second wireless communication module 220 includes the second directional antenna identifier, it indicates that the second positioning apparatus 200 is in the area where the campus sharing bicycle is prohibited to be used, and then the second central processing unit 250 may control the buzzer 240 to emit an alert sound to prompt the user to return to the area where the campus sharing bicycle is used, so as to avoid the excessive charging.
Optionally, since the communication system may include at least one first positioning device 100, the broadcast packet sent by the first wireless communication module 120 according to the preset period may further include an identifier of the first positioning device 100. As shown in fig. 4, taking the number of the at least one first positioning device 100 as 2 as an example, the at least one first positioning device 100 may include a first positioning device 1 and a first positioning device 2, and the first positioning device 1 and the first positioning device 2 may be respectively installed at both sides of a campus doorway. The coverage area of the directional antenna of the first positioning device 1 that transmits the broadcast packet in the first direction may partially overlap with the coverage area of the directional antenna of the first positioning device 2 that transmits the broadcast packet in the first direction, and the coverage area of the directional antenna of the first positioning device 1 that transmits the broadcast packet in the second direction may partially overlap with the coverage area of the directional antenna of the first positioning device 2 that transmits the broadcast packet in the second direction. Thereby increasing the number of broadcast packets sent by the first positioning device 100, and facilitating the detection of the broadcast packets by the second positioning device 200.
Alternatively, as shown in fig. 5, in order to avoid the coverage areas of the first directional antenna 111 and the second directional antenna 112 from being too small, the first included angle 10 and the second included angle 20 may be adjusted to be within the ranges of (60 ° and 90 °). The first angle 10 is an angle between the first directional antenna 111 and a surface on which the first positioning device 100 is mounted, and the second angle 20 is an angle between the second directional antenna 112 and the surface on which the first positioning device 100 is mounted.
Optionally, the first positioning apparatus 100 further includes a battery having a voltage of 3.6V and a capacity of 2200 mAh. Specifically, if the first positioning apparatus 100 transmits one broadcast packet to the inside and the outside of the boundary every 3 seconds, the data length of the broadcast packet is 16 bytes, the wireless rate is 100Kbps, and the time interval for transmitting two broadcast packets is 5 milliseconds, the one-time broadcast time is about 7 milliseconds. Assuming that the transmitting power of the first wireless communication module 130 is +10dBm and the transmitting current is 30mA, the average operating current I of the first positioning device 100 is: i30 mA 7 ms/3000 0.07mA, so that the battery power consumed by the first positioning device 100 operating for one hour is 0.07mAh, and if the first positioning device 100 needs to operate for 3 years, the required battery capacity B is: since B24 × 365 × 3 × I1839.6 mAh, it is sufficient to select a battery having a voltage of 3.6V and a capacity of 2200 mAh.
The utility model provides a positioner has following technological effect: on one hand, the positioning device comprising the directional antenna is arranged on the using boundary of the shared bicycle, so that the positioning device comprising the omnidirectional antenna can be ensured to receive the broadcast data packet sent by the positioning device comprising the directional antenna, and the influence of high buildings, woods and severe weather on signal transmission is avoided, thereby reducing the positioning error of the shared bicycle; on the other hand, the positioning device comprising the omnidirectional antenna can determine the position of the shared bicycle according to the received broadcast data packets comprising different identifications by periodically sending the broadcast data packets outwards through the directional antenna in at least one positioning device comprising the directional antenna, and prompt the user through the buzzer when the shared bicycle use area is exceeded, so that the user can be prevented from being charged due to the use in an excess area.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (11)
1. A positioning device configured to directionally transmit broadcast data packets, the positioning device comprising at least two directional antennas, a radio frequency switch, a first wireless communication module and a first central processor, wherein the first central processor is connected to the first wireless communication module, the first wireless communication module is connected to the radio frequency switch, and the radio frequency switch is connected to at least one of the directional antennas.
2. The positioning device of claim 1, wherein the at least two directional antennas comprise a first directional antenna and a second directional antenna, a signal transmission direction of the first directional antenna is a first direction, a signal transmission direction of the second directional antenna is a second direction, and an angle between the first direction and the second direction is between 60 ° and 180 °.
3. The positioning device of claim 2,
the first central processor is configured to control the first wireless communication module to transmit broadcast data packets according to a preset period;
the radio frequency switch is configured to select one directional antenna from the at least two directional antennas as a directional antenna for transmitting broadcast data packets according to the indication of the first central processor;
the first wireless communication module is configured to transmit a broadcast packet including a first directional antenna identification in the first direction through the first directional antenna or transmit a broadcast packet including a second directional antenna identification in the second direction through the second directional antenna according to the selection of the radio frequency switch.
4. The positioning device of claim 3, wherein the transmission frequencies of the first directional antenna and the second directional antenna are the same.
5. The positioning apparatus as set forth in claim 4, wherein said first directional antenna and said second directional antenna transmit at a frequency of 2.4 GHZ.
6. The positioning apparatus of claim 5, wherein a transmit power of the positioning apparatus is between-10 dBm and-5 dBm.
7. The positioning apparatus as set forth in claim 3, wherein the time interval between the first directional antenna transmitting the broadcast packet in the first direction and the second directional antenna transmitting the broadcast packet in the second direction is in the range of 1 msec to 5 msec.
8. The positioning device of claim 3, wherein a first angle and a second angle are in a range of 60 ° to 90 °, the first angle being an angle between the first directional antenna and a surface on which the positioning device is mounted, the second angle being an angle between the second directional antenna and a surface on which the positioning device is mounted.
9. A positioning device is configured to receive a directionally-transmitted broadcast data packet, and comprises an omnidirectional antenna, a second wireless communication module and a second central processing unit, wherein the second central processing unit is connected with the second wireless communication module, and the second wireless communication module is connected with the omnidirectional antenna.
10. The positioning device of claim 9, further comprising a vibration sensor and a buzzer, said vibration sensor and said buzzer being connected to said second central processor;
the second wireless communication module is configured to detect the directionally transmitted broadcast data packet and transmit the broadcast data packet received through the omnidirectional antenna to the second central processor if the vibration frequency of the vibration sensor exceeds a preset threshold;
the second central processing unit is configured to wait for receiving other broadcast data packets in case of receiving the broadcast data packet including the first directional antenna identification, and control the buzzer to send out a prompt tone in case of receiving the broadcast data packet including the second directional antenna identification.
11. A communication system, comprising: positioning device according to any of claims 1-8 and positioning device according to any of claims 9 and 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020218365.2U CN211152216U (en) | 2020-02-27 | 2020-02-27 | Positioning device and communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020218365.2U CN211152216U (en) | 2020-02-27 | 2020-02-27 | Positioning device and communication system |
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| CN211152216U true CN211152216U (en) | 2020-07-31 |
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| CN202020218365.2U Active CN211152216U (en) | 2020-02-27 | 2020-02-27 | Positioning device and communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532257A (en) * | 2020-11-06 | 2021-03-19 | 深圳市有方科技股份有限公司 | Broadcast signal control method, apparatus, signal transmitting device and storage medium |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532257A (en) * | 2020-11-06 | 2021-03-19 | 深圳市有方科技股份有限公司 | Broadcast signal control method, apparatus, signal transmitting device and storage medium |
| CN112532257B (en) * | 2020-11-06 | 2022-05-27 | 深圳市有方科技股份有限公司 | Broadcast signal control method, apparatus, signal transmitting device and storage medium |
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Effective date of registration: 20210624 Address after: 11 / F, a / F, Yizhan business building, 1 Wenyi West Road, Xihu District, Hangzhou City, Zhejiang Province, 310012 Patentee after: Hangzhou Hahang Network Technology Co.,Ltd. Address before: Room 501, building 1, No. 898 Xiuwen Road, Minhang District, Shanghai, 201199 Patentee before: SHANGHAI JUNZHENG NETWORK TECHNOLOGY Co.,Ltd. |
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