CN107342791B

CN107342791B - Method for transmitting power and data between mine-used vibration pickup and substation

Info

Publication number: CN107342791B
Application number: CN201611136628.XA
Authority: CN
Inventors: 窦林名; 何学秋; 许宝林; 巩思园; 蔡武; 刘震
Original assignee: Beijing Tairunqi Technology Development Co ltd; Xuzhou Hongyi Science And Technology Development Co ltd; China University of Mining and Technology CUMT
Current assignee: Beijing Tairunqi Technology Development Co ltd; Xuzhou Hongyi Science And Technology Development Co ltd; China University of Mining and Technology CUMT
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2021-02-05
Anticipated expiration: 2036-12-12
Also published as: CN107342791A

Abstract

The invention discloses a method for transmitting power and data between a mining vibration pickup and a substation, wherein the substation comprises a comparator 1, a resistor R1, a resistor R2 and a resistor R3, the mining vibration pickup comprises a comparator 2, a resistor R5 and a resistor R6, and the method comprises the following steps: two power lines are arranged between the mining vibration pickup and the substation, wherein one power line is a negative electrode line, and the other power line is a positive electrode line; a current limiting resistor A, B is respectively connected in series with the positive pole line at one side of the substation and the mining vibration pickup; when the substation sends data, the current-limiting resistor A on one side of the substation is disturbed to influence the voltage on the current-limiting resistor B, and the comparator 2 receives the changed voltage and then restores the data voltage through partial voltage comparison with the resistor R5\ resistor R6; when the mining vibration pickup sends data, the current-limiting resistor B is disturbed to influence the voltage on the current-limiting resistor A, and the comparator 1 receives the changed voltage and then restores the data voltage through partial voltage comparison with the resistor R1\ resistor R2. The invention has low construction cost and low construction difficulty.

Description

Method for transmitting power and data between mine-used vibration pickup and substation

Technical Field

The invention relates to a method for transmitting power and data between a mine-used vibration pickup and a substation.

Background

The vibration pick-up is a device for converting mechanical energy into electric energy, the electric energy signal is quantized to form a digital signal, another important task is to transmit data to a substation, and the traditional transmission mode has the following forms:

1. four cables are connected between the vibration pickup and the substation, two cables are used for supplying power to the sensor by the substation, the electric power required by the normal work of the vibration pickup is ensured, and the other two cables transmit data signals.

2. The vibration pickup supplies power independently, places an independent power near the vibration pickup, connects a two-core cable between the substation and the vibration pickup, carries out data transmission.

In short, the above two methods can be realized in terms of functions, but have the problems of high cost, difficult construction and the like.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a method for transmitting power and data by using a mine-used vibration pickup, which can reduce cost and is easy to construct.

In order to solve the technical problem, the method for transmitting power and data between a mining vibration pickup and a substation provided by the invention is characterized in that the substation comprises a comparator 1, a resistor R1, a resistor R2, a resistor R3 and a capacitor C1, the mining vibration pickup comprises a comparator 2, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C2 and a capacitor C3, and the method comprises the following steps:

step 1: two power lines are arranged between the mining vibration pickup and the substation, and one of the power lines is specified to be a negative electrode line, and the other power line is specified to be a positive electrode line; a current limiting resistor A, B is connected in series with the positive pole line at one side of the substation and the mining vibration pickup;

step 2: when the substation sends data, the resistor R3 forms data voltage, the current-limiting resistor A on one side of the substation is disturbed to drive the voltage on the current-limiting resistor A to change, the voltage on the current-limiting resistor B on one side of the mining vibration pickup is influenced through two power lines, and the comparator 2 receives the changed voltage and then restores the data voltage through partial voltage comparison with the resistor R5/the resistor R6;

and step 3: when the mining vibration pickup sends data, the resistor R7 forms data voltage, the current-limiting resistor B on one side of the mining vibration pickup is disturbed, the voltage on the current-limiting resistor B is driven to change, the voltage on the current-limiting resistor A on one side of the substation is influenced through the two power lines, and the comparator 1 receives the changed voltage and then restores the data voltage through the partial pressure comparison with the resistor R1/resistor R2.

The invention has the beneficial effects that: the method for transmitting the power supply and the data between the mining vibration pickup and the substation provided by the invention has the advantages of low construction cost and low construction difficulty, and when the lengths of two power lines are not more than 500 meters, the transmission rate of the data reaches 128K.

Drawings

FIG. 1 is a schematic flow chart of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the method for transmitting power and data between a mining vibration pickup and a substation provided by the present invention includes that the substation includes a comparator 1, a resistor R1, a resistor R2, a resistor R3, and a capacitor C1, the mining vibration pickup includes a comparator 2, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C2, and a capacitor C3; the substation power supply voltage is 15V, the capacitor C1 bit is 0.1 muF, and the method comprises the following steps:

step 1: two power lines are arranged between the mining vibration pickup and the substation, and one of the power lines is specified to be a negative electrode line, and the other power line is specified to be a positive electrode line; a current limiting resistor A, B is respectively connected in series with the positive pole line at one side of the substation and the mining vibration pickup, and the two current limiting resistors are both 220 omega; the substation continuously transmits the power source of the substation to the mine vibration pickup device through two power lines;

step 2: when the substation sends data, the resistor R3 forms data voltage to disturb the current-limiting resistor A, the voltage on the current-limiting resistor A is driven to change, the voltage on the current-limiting resistor B on one side of the mining vibration pickup is influenced through two power lines, the divided voltage of the resistor R5\ resistor R6 is the midpoint value of the changed voltage on the current-limiting resistor B, the comparator 2 receives the changed voltage and compares the voltage with the divided voltage of the resistor R5/resistor R6 to restore the data voltage; the capacitor C3 can smooth the comparison voltage;

and step 3: when the mining vibration pickup sends data, the resistor R7 forms data voltage to disturb the current-limiting resistor B at one side of the mining vibration pickup, so that the voltage on the current-limiting resistor B is driven to change, the voltage on the current-limiting resistor A at one side of the substation is influenced through two power lines, and the voltage division of the resistor R1/the resistor R2 is used for taking the midpoint value of the voltage change on the current-limiting resistor A; after receiving the changed voltage, the comparator 1 restores the data voltage by partial voltage comparison with a resistor R1\ a resistor R2; the resistance value of the resistor R8 is 470 omega, the capacitance C1 is 0.1 muF, and the current consumption of one side of the mining vibration pickup is controlled, so that the current is not more than 35 mA.

In the embodiment, when the lengths of the two power lines are not more than 500 meters, the transmission rate of data reaches 128K.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.

Claims

1. A method of transmitting power and data between a mining seismic pick-up and a substation, the substation comprising a comparator 1, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, the mining seismic pick-up comprising a comparator 2, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C2 and a capacitor C3, characterized by the steps of:

step 1: two power lines are arranged between the mining vibration pickup and the substation, and one of the power lines is specified to be a negative electrode line, and the other power line is specified to be a positive electrode line; a current limiting resistor A is connected in series with the positive pole line on one side of the substation, and a current limiting resistor B is connected in series with the positive pole line on one side of the mining vibration pickup, wherein one end of a capacitor C1 is grounded, the other end of the capacitor C1 is connected in series with a resistor R1, one end of a resistor R2 is grounded, the resistor R2 and a resistor R1 are connected with the comparator 1 after voltage division, a resistor R8 is connected in series with a resistor R5, a capacitor C2 is connected in series with the resistor R6, a circuit formed by connecting a resistor R8 and a resistor R5 in series and a circuit formed by connecting a capacitor C2 and a resistor R6 in series are connected in parallel and then connected with one end of the comparator 2, one end of a capacitor C3 is connected with one end of the comparator 2, the other end of the capacitor C3 is grounded, a capacitor C2 and a resistor R6 are grounded, and the capacitors C3, R6 and R5;

step 2: when the substation sends data, the resistor R3 forms data voltage, the current-limiting resistor A on one side of the substation is disturbed to drive the voltage on the current-limiting resistor A to change, the voltage on the current-limiting resistor B on one side of the mining vibration pickup is influenced through two power lines, and the comparator 2 receives the changed voltage and then restores the data voltage through partial voltage comparison with the resistor R5 and the resistor R6;

and step 3: when the mining vibration pickup sends data, the resistor R7 forms data voltage, the current-limiting resistor B on one side of the mining vibration pickup is disturbed to drive the voltage on the current-limiting resistor B to change, the voltage on the current-limiting resistor A on one side of the substation is influenced through the two power lines, and the comparator 1 restores the data voltage after receiving the changed voltage through the partial pressure comparison with the resistor R1 and the resistor R2.