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Detecting method for container truck based on geomagnetic sensor and statistical system for on-site container truck

A geomagnetic sensor and detection method technology, applied in the field of vehicle detection systems, can solve problems such as the complex environment of the wharf, and achieve the effect of improving loading and unloading efficiency and reducing time costs

Pending Publication Date: 2019-02-19
NINGBO DAXIE CHINA MERCHANTS INT TERMINAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the environment of the wharf is extremely complex, how to accurately identify the collection card in a complex environment has become a major problem in the application of geomagnetic sensors to the wharf

Method used

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  • Detecting method for container truck based on geomagnetic sensor and statistical system for on-site container truck
  • Detecting method for container truck based on geomagnetic sensor and statistical system for on-site container truck
  • Detecting method for container truck based on geomagnetic sensor and statistical system for on-site container truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of truck detection method based on geomagnetic sensor, such as figure 1 as shown,

[0031] A. Obtain the sampling frequency according to the actual situation.

[0032] The above display and due to the requirements of the speed limit V (km / h) in the venue, the vehicle distance d (m), and the vehicle length L (m), consider the actual situation and reduce the vehicle speed range Vmin-Vmax. The time interval between two vehicles passing by is

[0033] (My wharf V=30km / h, d=12m, L is about 15m, Vmin-Vmax is 10km / h-60km / h)

[0034]

[0035] Minimum sampling frequency (for edge detection)

[0036] fs min =4 / T

[0037] B. Judging the passage of vehicles:

[0038] According to the detection principle of the three-axis magnetoresistive sensor, the magnetic field value at the position of the sensor is detected, and the field distribution characteristics of the vehicle are extracted, which is applied to the statistics of the number of trucks passing through the dete...

Embodiment 2

[0057] A collection truck detection method based on a geomagnetic sensor and an on-site collection truck statistics system. Wireless geomagnetic sensors are installed at the entrances and exits of an area in a wharf, so that the entry and exit of vehicles in this area can be detected. In this embodiment , a geomagnetic sensor is installed at the entrance or exit for detection. When the collection truck enters the area through the entrance, the geomagnetic sensor at the entrance generates a signal. After the receiving module receives the geomagnetic signal generated by the geomagnetic sensor, the statistical module summarizes and counts Increase the number of collection trucks in the area by one; when the collection trucks leave the area through the exit, the geomagnetic sensor at the exit generates a signal, and it is counted as the number of collection trucks in the area decreases by one, so that it can be counted in real time The amount of change of collection cards in a cert...

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Abstract

The invention discloses a detecting method for a container truck based on a geomagnetic sensor and a statistical system for the on-site container truck. The changes of a magnetic field is detected more accurately when the container truck passes by providing a geomagnetic sensor on a lane and removing the influence of the environmental magnetic field and the noise. The container truck is accuratelyidentified, the container truck in the area can be monitored, and the number of the container truck in the area is count, which is prone to call the lifting equipment to improve the loading and unloading efficiency of the terminal container truck and reduce the time cost.

Description

technical field [0001] The invention relates to a vehicle detection system, in particular to a positioning system using a geomagnetic sensor. Background technique [0002] In the terminal process operation, the entry of external container trucks (referred to as external container trucks), the scheduling of loading and unloading equipment, and the departure of external container trucks require precise supervision of the entry and exit of vehicles. The time when the card finally arrives at the operation area cannot be obtained, so the field control cannot accurately arrange the equipment to go to work, resulting in low efficiency of entry and exit, and low service satisfaction. The loading and unloading equipment is dispatched so that the terminal operations can be carried out in an orderly manner. [0003] The current terminal industry uses RFID or GPS solutions to locate and monitor vehicles, and the above methods require vehicle drivers to carry GPS devices or RFID tags wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/042
CPCG08G1/042
Inventor 张冉顾卡杰何佳欢柳伟伟
Owner NINGBO DAXIE CHINA MERCHANTS INT TERMINAL CO LTD
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