CN204630612U - Railway switch machine information collecting device - Google Patents

Abstract

The utility model discloses an information collection device for a railway switch point machine, which comprises a sensor, a conditioning switching circuit, a processor, a wireless communication unit, and a wireless handheld terminal. The sensor is connected to the conditioning switching circuit, and the processor is respectively connected to the conditioning switching circuit, wireless communication unit, the processor is connected to the wireless handheld terminal through the wireless communication unit; the sensor includes one or more of a current sensor, a voltage sensor, a conversion torque sensor, a bar notch sensor, a temperature sensor, and a humidity sensor; the bar notch sensor is a distance The sensor; the conditioning conversion circuit includes an amplification circuit, a filter circuit, and an A/D conversion circuit; the wireless handheld terminal includes a second processor, a second wireless communication unit, a second display unit, and a second memory. The information collection device for a railway turnout switch machine proposed by the utility model can monitor the operating state of the railway turnout switch machine equipment in real time, and can remotely acquire relevant data.

Description

Information Acquisition Device for Railway Turnout Switch Machine

technical field

The utility model belongs to the technical field of railway equipment and relates to a railway switch switch machine, in particular to an information collection device for the railway switch switch machine.

Background technique

Today, there is no monitoring system for collecting information on railway turnouts and switch machines; fault warning information is usually provided only after a fault occurs, which may cause major economic losses, and may endanger the safe operation of the railway and personal safety, causing serious problems.

In view of this, there is an urgent need to design a management method for railway switch machines, so as to overcome the defect that existing railway switch machines cannot be remotely monitored.

Utility model content

The technical problem to be solved by the utility model is to provide a railway switch switch machine information collection device, which can monitor the operation status of the railway switch switch machine equipment in real time.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

An information acquisition device for a railway switch point machine, the information acquisition device includes: a sensor, a conditioning conversion circuit, a processor, a wireless communication unit, a wireless handheld terminal, the sensor is connected to the conditioning conversion circuit, the processor is respectively connected to the conditioning conversion circuit, the wireless A communication unit, the processor is connected to the wireless handheld terminal through the wireless communication unit;

The sensor includes one or more of a current sensor, a voltage sensor, a conversion torque sensor, a bar notch sensor, a temperature sensor, and a humidity sensor; the bar notch sensor is a distance sensor;

The conditioning conversion circuit includes an amplification circuit, a filter circuit, and an A/D conversion circuit, and the amplification circuit, the filter circuit, and the A/D conversion circuit are connected in sequence;

The wireless handheld terminal includes a second processor, a second wireless communication unit, a second display unit, and a second memory; the second processor is respectively connected to the second wireless communication unit, the second display unit, and the second memory.

The beneficial effect of the utility model is that: the railway switch switch machine information collection device proposed by the utility model can monitor the operation status of the railway switch switch machine equipment in real time, and can remotely obtain relevant data.

Description of drawings

Fig. 1 is a schematic diagram of the composition of the information collection device for a railway switch point machine of the present invention.

Figure 2 is a schematic diagram of the power supply identification circuit.

Figure 3 is a schematic circuit diagram of the phase shifting circuit.

Detailed ways

Preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Embodiment one

Please refer to Fig. 1. The utility model discloses an information collection device for a railway switch point machine. The information collection device includes: a sensor, a conditioning conversion circuit, a processor, a wireless communication unit, and a wireless handheld terminal. The sensor is connected to the conditioning conversion circuit. The processor is respectively connected to the conditioning conversion circuit and the wireless communication unit, and the processor is connected to the wireless handheld terminal through the wireless communication unit.

The sensor includes one or more of a current sensor, a voltage sensor, a conversion torque sensor, a bar notch sensor, a temperature sensor, and a humidity sensor; the bar notch sensor is a distance sensor.

The conditioning conversion circuit includes an amplification circuit, a filter circuit, and an A/D conversion circuit, and the amplification circuit, the filter circuit, and the A/D conversion circuit are connected in sequence.

The wireless handheld terminal includes a second processor, a second wireless communication unit, a second display unit, and a second memory; the second processor is respectively connected to the second wireless communication unit, the second display unit, and the second memory.

The information collection device also includes a drive circuit, which is used to receive the input of the power system, provide detection and protection for the interface of the railway switch point machine, and provide working power. The drive circuit includes a power supply identification circuit and a current detection protection circuit; the power supply identification circuit is used to realize the detection of three-phase input power supply voltage, phase failure and phase sequence; the current detection protection circuit is used to realize the current collection, detection and overshoot of the switch machine stream protection.

As shown in Figure 2, the power supply identification circuit includes a first transformer, a second transformer, a third transformer, a phase shifting circuit, a first phase measurement unit, a second phase measurement unit, a first AD converter, a second AD converter device and processor; the input signal forms three input power signals after passing through the first transformer, the second transformer and the third transformer respectively. The first transformer is connected to the input end of the phase shifting circuit; the output end of the phase shifting circuit and the second transformer are respectively connected to the input end of the first phase measurement unit, and the output end of the phase shifting circuit and the third transformer are respectively connected to the second phase measurement unit input. The first phase measurement unit, the first AD converter, and the processor are connected in sequence, and the second phase measurement unit, the second AD converter, and the processor are connected in sequence.

The working principle of the power supply identification circuit in this embodiment is:

Please refer to Figure 2, the composition of the power identification circuit is shown in Figure 2, and the phase-shifting circuit is used to shift the phase of the first input power signal by 90 degrees as a reference input power signal (the composition of the phase-shifting circuit is shown in Figure 3) , and use AD8302 to judge the phase of the input signal of the second power supply, and another AD8302 as an auxiliary circuit to judge the phase of the third input power signal, thereby judging the phase sequence of the three-phase input signal.

Among them, AD8302 contains 2 precisely matched broadband logarithmic amplifiers, 1 broadband phase detector, 1.8V precision reference source, and analog calibration circuit and interface circuit, which can simultaneously measure 2 input signals from low frequency to 2.7GHz frequency range The gain (also called amplitude ratio) and phase difference between them.

The range of measuring phase difference is 0°-180°, the corresponding output voltage range is 0V-1.8V, the output voltage sensitivity is 10mV/degree, and the measurement error is less than 0.5°. When the phase difference Δψ = 0°, the output voltage is 1.8V; when Δψ = 180°, the output voltage is 30mV, and the output current is 8mA. The expression of the phase difference output voltage is:

In the formula, is the phase difference ramp voltage, the unit is mV/degree; ψ is the phase of each signal, the unit is degree. The phase detector has a phase difference range of 180°. The range of the phase difference can be 0°-+180° (with 90° as the center), or 0°--180° (with-90° as the center). According to the different values of the phase difference response characteristic curve of AD8302 at 30° and 150°, the phase difference of the two measured signals can be determined, and the phase sequence of the input signal can be judged by the phase difference.

To sum up, the information collection device for railway turnout switch machines proposed by the utility model can monitor the operating status of railway turnout switch machine equipment in real time, and can remotely obtain relevant data.

The description and application of the present invention here are illustrative, and are not intended to limit the scope of the present invention to the above-mentioned embodiments. Variations and changes to the embodiments disclosed herein are possible, and substitutions and equivalents for various components of the embodiments are known to those of ordinary skill in the art. It should be clear to those skilled in the art that, without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other forms, structures, arrangements, proportions, and with other components, materials and parts. Other modifications and changes may be made to the embodiments disclosed herein without departing from the scope and spirit of the invention.

Claims (1)

1. a railway switch machine information collecting device, it is characterized in that, described information collecting device comprises: sensor, conditioning change-over circuit, processor, radio communication unit, wireless handheld terminal, sensor connects conditioning change-over circuit, processor connects conditioning change-over circuit, radio communication unit respectively, and processor connects wireless handheld terminal by radio communication unit;

It is one or more that described sensor comprises in current sensor, voltage sensor, conversion torque sensor, indication rod breach sensor, temperature sensor, humidity sensor; Indication rod breach sensor is range sensor;

Described conditioning change-over circuit comprises amplifying circuit, filtering circuit, A/D change-over circuit, and amplifying circuit, filtering circuit, A/D change-over circuit connect successively;

Described wireless handheld terminal comprises the second processor, the second radio communication unit, the second display unit, second memory; Second processor connects the second radio communication unit, the second display unit, second memory respectively.