An automatic fault reminder for a rail logistics system

Abstract

This utility model discloses an automatic fault alert device for rail logistics systems, including a telephone, an electronic control board, a power module, and a fault trigger signal interface. The device receives fault signals from the rail system via a programmable controller, and after a delay, automatically triggers the telephone to speak hands-free, redial the maintenance personnel, and then hangs up, solving the problem of unattended faults in rail logistics systems. This device is low-cost, highly practical, and features false alarm delay, fault status detection, and automatic reset functions.

Description

Technical Field

[0001] This utility model relates to the field of logistics system technology, and in particular to an automatic fault reminder device for rail logistics systems. Background Technology

[0002] Rail-based logistics systems are widely used in hospitals and other settings, but existing systems lack real-time fault alarm mechanisms, leading to untimely maintenance. Traditional manual monitoring is costly, and the software lacks audible and visual alarm functions, easily causing delivery delays and complaints. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this application proposes an automatic fault reminder device for rail logistics systems to solve the problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] An automatic fault alert device for a rail logistics system includes:

[0006] A telephone is used to perform dialing, hands-free calling, and hanging-up operations.

[0007] An electronic control board, connected to the keypad circuit of the telephone, is used to receive fault signals from the track system and control the operation of the telephone.

[0008] The power module provides DC power to the electronic control board;

[0009] The fault trigger signal interface is used to receive the fault trigger voltage signal output by the rail logistics system.

[0010] The electronic control board includes a programmable controller, which is configured to: when a fault trigger signal is received, first delay for a preset time, then sequentially trigger the hands-free key and redial key of the telephone, and automatically hang up after the dialing is completed.

[0011] As a further technical solution of this utility model: the preset time is 30 seconds, which is used to prevent false alarms caused by the hood not being closed tightly.

[0012] As a further technical solution of this utility model: the electronic control board includes:

[0013] The control chip uses an AT89S52 microcontroller, equipped with a 12MHz crystal oscillator and a reset circuit.

[0014] Optocouplers are used to isolate fault trigger signals from control chips, including hands-free optocouplers and redial optocouplers;

[0015] The indicator module includes a power indicator, a fault indicator, a hands-free indicator, and a redial indicator.

[0016] Reverse polarity protection circuit, including a 4007 diode and a 4148 diode connected in parallel at the negative terminal.

[0017] As a further technical solution of this utility model: the reset circuit consists of a 10uF electrolytic capacitor and a 10K resistor, and is connected to the reset pin of the control chip.

[0018] As a further technical solution of this utility model: the telephone is a modified old landline phone, and the electronic control board simulates key signals to realize hands-free, redial, and hang-up functions; the redial key is pre-stored with the phone number of maintenance personnel, and is stored by manual dialing when used for the first time.

[0019] As a further technical solution of this utility model: the power supply module is powered by DC 5V, and the fault trigger signal is a DC 15V~30V voltage signal.

[0020] As a further technical solution of this utility model: the control chip determines the fault signal by detecting the level status of the P0.0 port, and the low level is effective; the output terminal of the optocoupler is connected to the I / O port of the control chip, and the button trigger interval is adjusted to avoid button conflict.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] This invention relates to an automatic fault alert device for rail logistics systems, which solves the problem of unattended faults in these systems. The device is low-cost, highly practical, and features anti-false alarm delay, fault status detection, and automatic reset functions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the principle of this utility model.

[0024] Figure 2 This is a flowchart illustrating the process of this utility model.

[0025] Figure 3 This is the circuit diagram of the control board of this utility model. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figure 1-3 As shown, an automatic fault alert device for a rail logistics system includes: a telephone for performing dialing, hands-free, and hang-up operations; an electronic control board connected to the keypad circuit of the telephone for receiving fault signals from the rail system and controlling the telephone's actions; a power module for providing DC power to the electronic control board; and a fault trigger signal interface for receiving fault trigger voltage signals output by the rail logistics system. The electronic control board includes a programmable controller configured to: upon receiving a fault trigger signal, first delay for a preset time, then sequentially trigger the hands-free key and redial key of the telephone, and automatically hang up after dialing.

[0028] The working principle is as follows:

[0029] Preparation:

[0030] Hardware assembly: Disassemble the old landline phone, connect the electronic control board to the hands-free, redial, and hang-up button circuits of the telephone, and connect it to a 5V power supply and a fault trigger signal line.

[0031] Program settings: The control program is programmed into the AT89S52 chip via a programmer, setting a 30-second delay, button trigger timing, and hang-up logic.

[0032] Debugging and optimization: Adjust the optocoupler trigger time (0.3 seconds) and key interval (1.5 seconds) to ensure dialing success rate; verify the accuracy of the delay by flashing the power indicator light.

[0033] like Figure 2 As shown, the circuit uses a 5V DC power supply, with the negative terminal 4007 to prevent reverse connection of the power line. After power-on, the red power indicator light illuminates. When a fault trigger signal arrives from the track system, the system fault indicator light illuminates. (Trigger signal range: DC 15V~30V. The negative terminal 4148 is to prevent reverse connection of the fault signal line.) The optocoupler closes, and a low-level signal is transmitted to pin 39 of the control chip. The delay indicator light on pin 1 flashes. After the control chip program sets 30 seconds, the delay light goes out, the hands-free indicator light flashes briefly, and the hands-free optocoupler closes briefly. After 1.5 seconds, the redial indicator light flashes briefly, and the redial optocoupler closes briefly. After 16 seconds, the hands-free indicator light flashes briefly, the hands-free optocoupler closes briefly, and the circuit hangs up. Then, it waits for the alarm to end.

[0034] The control chip has pins 6, 7, 8, and 9 around its perimeter for connecting a programmer to rewrite the program. A 10uF electrolytic capacitor and a 10K resistor are connected to pin 9. This capacitor and resistor form the chip's reset circuit. Pins 18 and 19 are connected to a 12MHz crystal oscillator and a 30pF capacitor. The reset circuit, crystal oscillator, and 5V power supply are the three essential elements for the control chip to function; none can be missing. Spare parts are kept inside the telephone for repair; if the chip malfunctions, the spare part can be used for replacement.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easy for those skilled in the art to understand.

Claims

1. An automatic fault reminder device for a rail logistics system, characterized in that: include: A telephone is used to perform dialing, hands-free calling, and hanging-up operations. An electronic control board, connected to the keypad circuit of the telephone, is used to receive fault signals from the track system and control the operation of the telephone. The power module provides DC power to the electronic control board; The fault trigger signal interface is used to receive the fault trigger voltage signal output by the rail logistics system. The electronic control board includes a programmable controller, which is configured to: when a fault trigger signal is received, first delay for a preset time, then sequentially trigger the hands-free key and redial key of the telephone, and automatically hang up after the dialing is completed.

2. An automatic fault reminder device for a rail logistics system according to claim 1, characterized in that, The preset time is 30 seconds, which is used to prevent false alarms caused by the hood not being closed tightly.

3. An automatic fault reminder device for a rail logistics system according to claim 2, characterized in that, The electronic control board includes: The control chip uses an AT89S52 microcontroller, equipped with a 12MHz crystal oscillator and a reset circuit. Optocouplers are used to isolate fault trigger signals from control chips, including hands-free optocouplers and redial optocouplers; The indicator module includes a power indicator, a fault indicator, a hands-free indicator, and a redial indicator. The reverse polarity protection circuit includes a 4007 diode and a 4148 diode connected in parallel on the negative terminal.

4. An automatic fault reminder device for a rail logistics system according to claim 3, characterized in that, The reset circuit consists of a 10uF electrolytic capacitor and a 10K resistor, and is connected to the reset pin of the control chip.

5. An automatic fault reminder device for a rail logistics system according to claim 1, characterized in that, The power module is powered by DC 5V, and the fault trigger signal is a DC 15V~30V voltage signal.

6. An automatic fault reminder device for a rail logistics system according to claim 3, characterized in that, The control chip determines the fault signal by detecting the P0.0 port level status, with a low level being effective; the output terminal of the optocoupler is connected to the I / O port of the control chip, and button conflict is avoided by adjusting the button trigger interval.

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