Locomotive positioning method suitable for wireless switching locomotive signal and monitoring system
A technology for shunting locomotives and monitoring systems, applied in the field of rail transit, can solve problems such as inconvenient care and maintenance, inability to locate locomotives, and high investment costs, so as to reduce equipment misjudgments or functional failures, and solve location information errors Larger and lower equipment production costs
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Embodiment 1
[0025] figure 2 It is a flowchart of a locomotive positioning method suitable for a wireless shunting locomotive signal and monitoring system provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the method mainly includes the following steps:
[0026] Step 21, correcting the GPS positioning data of the current locomotive in real time to obtain the corrected GPS positioning data.
[0027] In the embodiment of the present invention, a filter (α-β filter) is used to filter the calculated distance from visible satellites and the difference between the measured values containing errors and calculate the deviation to obtain differential data; and then use the The differential data corrects the GPS positioning data of the locomotive; obtains the corrected GPS positioning data (for example, latitude and longitude).
[0028] Step 22: Initially locate the current locomotive according to the corrected GPS positioning data and the station map data of the cu...
Embodiment 2
[0051] In order to facilitate understanding of the present invention, below in conjunction with Figure 3-7 The present invention is further introduced.
[0052] The solution of the embodiment of the present invention can be applied to the STP system, such as image 3 As shown, the ground equipment has added a positioning differential device, and the vehicle equipment has added a satellite positioning device.
[0053] Among them, the vehicle-mounted satellite positioning device for receiving GPS signals in the vehicle-mounted equipment has the following components: Figure 4 As shown, the vehicle-mounted satellite positioning device on the locomotive is composed of a GPS board and an embedded processor. The GPS board can be a high-precision OEM board. The single-point positioning accuracy can reach 1.8m, and the pseudo-range differential positioning accuracy can reach 0.45m. When the vehicle-mounted host computer receives the differential data broadcast by the ground equipm...
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