WO2005070741A1

WO2005070741A1 - An energy-saving operation controller for an underground

Info

Publication number: WO2005070741A1
Application number: PCT/CN2003/001050
Authority: WO
Inventors: Chung Yan Chui
Original assignee: Star Top (H.K.) Limited
Priority date: 2003-12-09
Filing date: 2003-12-09
Publication date: 2005-08-04
Also published as: CN1886288A; CN100398370C; AU2003292848A1

Abstract

An energy-saving operation controller is used to instruct a driver to adjust the running conditions of an underground, including a door opening/closing detector, a speed detector, a memory unit, a signal output unit, and a CPU. The CPU compares the signal coming from the speed detector with the data in the memory unit, and then sends a corresponding operation signal to the signal output unit depending on the result. The invention has many advantages, such as it has a small volume, it is easy to find a mounting position in the narrow prior art underground’s cab, and the operation method is easy to learn. The invention use internet, PDA and infrared communication to transmit signal, avoid need for wireless communication system. Except above advantages, it is simple and has high reliability.

Description

Technical field

The invention relates to an energy-saving operation controller for instructing a driver to adjust the running state of a subway train. Background technique

Metro trains are gaining popularity in more and more areas as a means of transport within or between large cities. Because the station is relatively close to each other, the running speed is high, and at the same time, accurate on-time rate is required, so that the operation of the subway train needs to frequently switch the operation of the subway train between starting, accelerating, rolling and braking. status.

Earlier subways had to be operated by drivers to ensure punctual operation. Drivers must judge and take the best operation methods based on economic risks through training and internships to run on time. Drivers need to consider many factors such as route conditions, passenger capacity, etc. to estimate when to start, accelerate, coast, and brake. Therefore, large errors often occur with the established schedules, giving people with accurate time requirements Inconvenience has not met the basic requirements of modern urban transportation. At the same time, inexperienced drivers cannot find the best timing for acceleration, rolling, and braking. To ensure that they are as punctual as possible, the energy used by the locomotive is often the price.

The newly built subway trains all have an automated operating system. The driver only needs to press Start in the cab to press the ¾ button, and the train will start, accelerate, roll and brake on its own and arrive at the next stop on time. Such an automated operating system requires the installation of a large number of computers, signal generators, and other equipment in each cab, trackside, and control center to control the operation of subway trains, which is extremely expensive. Summary of the invention

The main object of the present invention is to provide an energy-saving operation controller that guides a driver on duty to perform operation tasks in a timely manner under the premise of on-time and energy-saving;

Another object of the present invention is to provide an energy-saving operation controller with a simple structure and low cost. Another object of the present invention is to provide an energy-saving operation controller that facilitates parameter updating.

To achieve the above objective, the technical solution provided by the present invention is as follows:

A door switch detection device is used to give a signal of the door opening or closing status, for example, a high-level signal is given when the door is open, a low-level signal is given when the door is closed, and the signal is sent to the central processing unit. A speed detection device, which is used to give a timely speed signal of the train, and this signal is also sent to the CPU. A storage unit for providing reference data parameters. A signal output unit is used to display the name of the station, the timetable of the subway train operation, and give the operation prompt signal. A central processing unit is configured to compare the signal output from the speed detection device with the reference data of the storage unit, and send a corresponding operation prompt signal to the signal output unit according to the comparison result.

It can be seen from the above scheme that when people input the optimized reference parameter of a particular subway line paint into the storage unit, the energy-saving operation controller will compare the data sent by the speed detection device with it, and compare it with the reference parameter. When the ratio reaches or exceeds the set deviation value, a lift signal will be issued. As long as the driver operates in accordance with the operation prompt signal given by the signal output unit, the purpose of ensuring punctuality and energy saving can be confirmed. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a circuit block diagram reflecting the design concept of the present invention;

FIG. 2 is an electrical schematic diagram of a preferred embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the preferred embodiments of the present invention and the accompanying drawings.

Referring to FIG. 1, this is a schematic block diagram of the present invention. The signal input unit is composed of four keys: key 1, key 2, key 3, and key 4, which can respectively send the operating line, starting station, and arrival time to the central processor. The instruction to adjust the time difference. "Car door switch detection" and "speed detection" provide the central processor with the train's timely parameters, and the memory stores the given reference parameters. The central processor compares the timely parameters with the reference parameters, and outputs the The display signal output reminds the driver. If the subway route or station changes, the reference data can be updated or corrected through the infrared controller and infrared receiver. The entire energy-saving operation controller is powered by a lithium battery. When the battery power is insufficient, it can be notified through signal output.

Referring to FIG. 2, this is a circuit diagram of a preferred embodiment of the present invention. The central processing unit U1 uses

PIC16F877 type single-chip microcomputer. It has a built-in 10-bit analog-to-digital converter to receive the simulation signal for speed detection. It also has a built-in general asynchronous transceiver to connect to the infrared port. The display U2 uses a liquid crystal GM-I ^{22 32-7} liquid crystal display module. The display circuit also includes signal generators U3B and U3C. The key switches SI, S2, S3, and S4 are "route key", "site key", "timetable key", and "delay key" in this order. Memory U5 uses 24LC08 type rewritable read-only memory, which is mainly used for saving timetable. The acoustic signal output circuit consists of a buzzer BZ1, a transistor Ql, a capacitor C18, and a resistor R28, which can emit different tones to inform the driver of different Information. The speed detection signal J1 is added to the circuit. It is a DC signal with a voltage range of 0-10V. It is divided by a circuit composed of amplifier U3A, resistors R7, R8, and R9 to one-third of the input voltage and provides a signal. For the analog-to-digital converter built into the central processing unit U1, there is also a 7 ⁵ V reference voltage provided by the voltage regulator U9, the resistors R ²² , R ²³ , and R ²⁷ to ensure the accuracy of the speed voltage. The train opening and closing signal is added to J2 in the circuit, which is usually an open or short circuit signal, and provides the signal to the central processing unit U1 through the photocoupler U8. The photocoupler U8 can make the central processing unit U1 and the train environment voltage fluctuation and interference Isolated, photocoupler U8 uses 4N25. The power control part includes a lithium battery and a DC-DC converter U8. The converter U8 uses MCP1252, which is a non-inductive, forward-regulated charge pump DC / DC converter that can convert a 3.6V battery to 5V. DC voltage, each time it is fully charged, can keep the subway train running for 100 hours. When the battery voltage is too low, the low voltage signal is provided by a circuit composed of R32 and R33 to the central processor Ul. The infrared port updates the timetable through the infrared communication of a handheld computer (PDA). It consists of an infrared controller U6 and an infrared receiver U7. The infrared controller U6 uses MCP2150 and the infrared receiver U7 uses TRDU4100. A system programming interface J 3 is also designed in the circuit, which can upgrade the software version and diagnose the hardware.

The entire energy-saving operation controller, including a lithium battery, can be placed in a small case and installed on a wall for easy observation in the subway train cab.

The driver's operation procedure is as follows: When starting from the main station, press the power button and press ¾, the display shows the company name, press the line button to select the appropriate line, and the display shows the starting and ending station names to confirm that the selection is correct. Press the timetable key to select the appropriate timetable. The display shows the selected timetable. The driver closes the door and activates the power of the train. The energy-saving operation controller can calculate the audible signal of acceleration, coasting, braking or re-acceleration at the appropriate time based on the speed signal. The driver only needs to follow the instructions of the different audible signals to perform the corresponding operation. The train will arrive on time in an energy-saving state. If the train is not at the main station when the train starts running, the driver needs to press the station button to select the station where the train is located. The name of the station will appear on the display. If the train is delayed at the start of a station, the driver must press the delay button to select the delay time, such as

10 seconds, 20 seconds, 60 seconds.

Industrial applicability

The energy-saving operation controller provided by the present invention has the advantage of small volume, and it is relatively easy to find an appropriate installation position in the cab of an existing subway train with a small space. With only a few buttons, the operation method is simple and easy to learn. Data is downloaded via the Internet, PDA, and infrared, eliminating the need for wireless communication systems. In addition, it has the advantages of simple structure and high reliability.

Claims

Claim

1. An energy-saving operation controller for a subway train, which is characterized by:

A door switch detection device, which is used to give a status signal of the door opening or closing;

A speed detection device for giving a timely speed signal of the train;

A storage unit for providing reference data parameters;

A signal output unit for displaying a station name, a running schedule, and giving an operation signal; a central processing unit for comparing a signal output from a speed detection device with reference data of a storage base unit, and according to the comparison result Send the corresponding operation prompt signal to the signal output unit.

2. The subway train energy-saving operation controller according to claim 1, further comprising:

A signal input unit for inputting modified reference data parameters;

An infrared controller and an infrared receiver provide a channel for updating the reference data parameters in the storage unit.

3. The subway train energy-saving operation controller according to claim 1 or 2, wherein ^ HM is:

A power control unit, when the battery power is low, sends a prompt signal through the central processing unit.

4. The energy-saving operation controller for a subway train according to claim 3, wherein the signal output unit is a circuit including a display and a buzzer.