Relative position detection equipment and working method thereof

A technology of relative position and detection equipment, which is applied in the field of wireless communication and can solve the problems of large risk factors, missed detection of mutual ranging, and failure of ranging.

Pending Publication Date: 2019-05-10
NANJING WOXU COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in practical applications, there may be a large number of movable targets in the area. Due to the large number of targets, mutual ranging may lead to missed detection, and there is a greater risk factor
In addition, due to factors such as on-site obstructions between two targets that are actually very close to each other, the distance measurement often fails, resulting in frequent accidents

Method used

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  • Relative position detection equipment and working method thereof
  • Relative position detection equipment and working method thereof
  • Relative position detection equipment and working method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0099] In the factory, the most typical is the anti-collision between forklifts and people. Due to the line of sight, corners, workers' carelessness, and the fast driving of forklifts, a large number of accidents are caused every year, workers are injured, and the factory brings losses. The most typical model of this kind is that both people and cars are moving, and because of the instantaneous concentration of people and cars.

[0100] Install one relative position detection device mentioned in this invention on each forklift, and at the same time, each worker has one, which can effectively realize the prediction of forklift collision, and is also suitable for other vehicles, and is also suitable for vehicles. collision avoidance.

[0101] Implementation:

[0102] Install relative position detection equipment on the forklift to verify that the motion sensing unit 201 matches the direction of use of the forklift, and set a certain distance protection zone for the forklift. ,...

specific Embodiment 2

[0108] combine Figure 4 , when the car and the person are at two different corners, the obtained angle data is obtained through multi-path due to the low feasibility of the distance measurement data, which is also unavailable. At this time, the short-distance wireless sensing unit 101 based on the two relative position detection devices needs to sense. If the signal strength exceeds the threshold, at this time, the vehicle-mounted relative position detection device also needs to send an alarm.

[0109] It should be understood that Figure 4 The mentioned scenario is one of the examples of ranging failure. The present invention proposes to realize the alarm by judging the signal strength. It is not limited to whether the ranging fails. It is only used as another alarm triggering method to realize multiple judgments. Improve security.

specific Embodiment 3

[0110] When the function of preventing lost tracking is selected, it is typically used in supermarkets. In order to improve efficiency or free hands, such as supermarket replenishment carts, the replenishment staff needs to keep pushing the cart, but in fact, it can be used according to the replenishment The replenishment truck can automatically follow the personnel walking, reducing the number of times the replenishment personnel walk back and forth, and improving the replenishment efficiency. The other is the supermarket shopping cart. The shoppers no longer need to push the shopping cart to walk, they only need to walk in front and the shopping cart follows behind.

[0111] One of the relative position detection devices mentioned in the present invention is installed on the following vehicle, and the other wears it. The settings of synchronization and time slicing are the same as before. Before the system is used, it is necessary to complete the pairing of the two devices to...

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Abstract

The invention relates to relative position detection equipment, which comprises a wireless communication module and a data processing module, wherein the wireless communication module comprises a remote wireless sensing unit, a near-distance wireless sensing unit and a wireless ranging unit supporting distance and direction sensing. Through wireless time synchronization, near-distance sensing, dynamic ranging frequency adjustment, fusion of motion sensors and the like, multi-target relative position detection is effectively solved, and wireless conflicts between targets in multi-target use areeffectively solved; especially when the risk is high, the sensing frequency is increased, and the response time is shortened; and meanwhile, through the fusion and the azimuth sensing of the motion sensors, a false alarm rate is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a relative position detection device and a working method thereof. Background technique [0002] In the invention application with the application number CN201520999759.5 "a forklift-personnel wireless ranging alarm system", and the invention application with the application number CN201810157708.6 "data processing method, device, alarm method, alarm device and alarm equipment" , it is mainly mentioned that the detection of the distance / position relationship is realized by the method based on distance measurement or angle of arrival. [0003] However, in practical applications, there may be a large number of movable targets in the area. Due to the large number of targets, mutual ranging may lead to missed detection, and there is a greater risk factor. In addition, due to factors such as on-site obstructions between two targets that are actually very close to each ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/16H04W4/02H04W4/021H04W4/06H04W4/38H04W4/40H04W56/00H04B17/318G08B21/02
Inventor 房宏林权威
Owner NANJING WOXU COMM TECH
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