Locomotive operation safety aid

Abstract

This utility model discloses a locomotive operation safety auxiliary device, relating to the field of locomotive operation auxiliary equipment. It includes an alarm circuit comprising a time-delay relay, a normally closed reset switch, and an alarm. The power supply of the time-delay relay is anti-interlocked with the zero-position contact of the driver's controller. The other end of the time-delay relay is connected in series with the normally closed reset switch and then connected to the locomotive's power supply. One end of the alarm is connected in series with the normally open contact of the time-delay relay, and the other end is connected to the locomotive's power supply. Compared with existing technologies, when this device is powered on, the time-delay relay enters a timing state. If the driver does not press the reset switch within the set time, an alarm bell is immediately triggered, using audible and visual signals to remind the driver to stay alert. When the driver is fatigued and slow to react or becomes inattentive, the set timing threshold can avoid false alarms due to short-term operational pauses and can quickly trigger audible and visual warnings in the early stages of driver drowsiness, effectively reducing operational risks caused by fatigue or distraction.

Description

Technical Field

[0001] This utility model relates to the field of locomotive operation auxiliary equipment technology, and in particular to a locomotive operation safety auxiliary device. Background Technology

[0002] In diesel locomotive operation, the traditional working mode relies on "two-person operation and collaborative control" as the core safety guarantee. During operation, the two drivers must strictly follow standardized procedures: confirming operational intentions through "call-response - instruction repetition," and taking turns moving to check signal displays and monitor train operating parameters, using a "double verification" mechanism to avoid single operational deviations. This collaborative mode not only reduces the probability of misoperation but also enables rapid support and alerts in case of emergencies such as foreign objects on the track or equipment failures, thereby greatly reducing the risk of accidents.

[0003] With the iteration of rail transit technology and the optimization of operational procedures, diesel locomotive driving has now transformed into a single-person, single-position operation, where one driver can independently complete the entire process from departure and operation monitoring to parking. This transformation has significantly improved human resource turnover and effectively reduced corporate labor costs, but it has also posed greater challenges to individual drivers. Drivers must undertake continuous shifts of up to 8 hours alone, during which they must continuously monitor the track environment, adjust driving parameters in real time, and deal with various emergencies. Due to the lack of real-time reminders and cooperation from colleagues, fatigue or distraction caused by prolonged high-intensity focus, even a delay in signal confirmation or deviation in operating instructions, can lead to serious accidents and cause irreparable loss of life and property. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a locomotive operation safety auxiliary device that not only improves the driver's alertness during long-term driving, but also effectively reduces the operational risks caused by fatigue or distraction.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: This locomotive operation safety auxiliary device includes an alarm circuit, which has a time delay relay, a normally closed reset switch and an alarm. The power supply of the time delay relay is anti-interlocked with the 0 position contact of the driver's controller. The other end of the time delay relay is connected in series with the normally closed reset switch and then connected to the locomotive switching power supply. One end of the alarm is connected in series with the normally open contact of the time delay relay, and the other end is connected to the locomotive switching power supply.

[0006] A more specific technical solution for the above-mentioned locomotive operation safety auxiliary device could be that the alarm is an audible and visual alarm.

[0007] In some possible implementations, the alarm is a Delixi sound and light alarm with a 24V operating voltage.

[0008] In some possible implementations, the time delay relay is the Chint DH48S-1Z time delay relay.

[0009] In some possible implementations, the locomotive switching power supply is 24V.

[0010] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. Since this device includes a time-delay relay, a normally closed reset switch, and an alarm, when the device is powered on, the time-delay relay will enter a timing state. If the driver does not press the reset switch within the set time, the device will immediately trigger an alarm sound, using a strong audible and visual signal to remind the driver to stay alert. Compared to the passive reminder of calling and responding in traditional two-person collaboration, this device actively detects abnormalities during driver operation intervals. When the driver is fatigued and slow to react or becomes inattentive, the set timing threshold can not only avoid false alarms due to short-term operational pauses, but also quickly trigger audible and visual warnings in the early stages of driver drowsiness. This fundamentally solves the safety shortcomings of self-monitoring failure in single-person operation and significantly reduces the risk of operational errors caused by fatigue.

[0011] 2. Because the power supply of this device is anti-interlocked with the 0-position contact of the driver's controller, it is only powered on and works when the driver's controller is not in the 0-position, i.e., when the locomotive is in motion, shunting, or other operating states. It automatically cuts off the power when the locomotive is stationary. This connection design conforms to the locomotive's operating logic, avoids invalid alarms when the locomotive is stopped and waiting, and reduces unnecessary interference to the driver. At the same time, it can also eliminate the risk of the device not starting while in motion, ensure full protection during operation, reduce standby power consumption, and extend the service life of the device and the locomotive's battery life.

[0012] 3. The selected Chint DH48S-1Z time delay relay and 24V Delixi audible and visual alarm are both mature industrial-grade products. The Chint DH48S-1Z time delay relay has wide temperature range and anti-electromagnetic interference characteristics, which can withstand the effects of harsh environments such as locomotive engine vibration and electromagnetic radiation from the traction system. The 24V Delixi audible and visual alarm has a 24V operating voltage that is fully matched with the low-voltage control circuit of the locomotive, avoiding circuit failures caused by voltage incompatibility. The combination of the two ensures that the system operates stably in the cold, humid, and dusty railway operating environment, significantly improving the mean time between failures and reducing safety hazards caused by equipment failure.

[0013] 4. The device adopts modular integration of components. The three components of relay, alarm and reset switch are independent and highly versatile. When a component fails, there is no need to replace the whole system. Only the corresponding component needs to be replaced, which reduces the operation and maintenance time by more than 50%. At the same time, the device has no complicated software programs. Routine maintenance only requires checking the wiring and testing the alarm function. No professional technicians are required, which significantly reduces the operation and maintenance manpower and spare parts costs and meets the enterprise's needs for low-cost and high-reliability operation and maintenance of equipment.

[0014] 5. From an economic perspective, this device achieves dual value. On the one hand, by replacing traditional two-person collaboration with technological means, it continuously reduces labor costs while ensuring safety, with no additional operating costs. On the other hand, by reducing accidents caused by fatigue driving, it avoids equipment maintenance and downtime losses resulting from accidents. This dual benefit of added safety and cost optimization helps enterprises find a balance between safe production and economic benefits, enhancing their core competitiveness in the industry. Attached Figure Description

[0015] Figure 1 This is the circuit schematic diagram of this utility model. Detailed Implementation

[0016] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figure 1The embodiment shown proposes a locomotive operation safety auxiliary device, including an alarm circuit. This alarm circuit has a time-delay relay KT, a normally closed reset switch K1, and an alarm B. The alarm B can be a 24V operating voltage Delixi audible and visual alarm. The time-delay relay KT is a Chint time-delay relay DH48S-1Z. One end of the power supply of the time-delay relay KT is anti-interlocked with the 0-position contact of the driver's controller. The other end of the time-delay relay is connected in series with the normally closed reset switch K1 and then connected to the locomotive's switching power supply. One end of the alarm B is connected to the time-delay relay... The normally open contact KT1 of the device KT is connected in series, with the other end connected to the locomotive's 24V switching power supply. This device is mounted on the driver's control panel. Its operation logic is extremely simple; the driver only needs to press the reset button when an alarm occurs to complete the reset, eliminating the need to learn complex operating procedures. Compared to the cumbersome steps of traditional two-person collaboration involving position confirmation and cross-checking, this device simplifies manpower allocation without increasing the driver's workload. Instead, it reduces the psychological pressure and workload of single-person operation through automated monitoring, achieving reduced manpower without compromising safety and increased efficiency without adding complexity. The device's power supply is cleverly anti-interlocked with the driver's controller's 0-position contact. This means that the device will only be powered on and start working when the driver's controller is not in the 0-position operating state. This design effectively avoids starting when the locomotive is stationary, saving energy and reducing unnecessary interference. Once the device is powered on, the time-delay relay is energized and enters timing mode. If the driver does not press the reset switch button for more than 60 seconds within the set time, the normally open contact KT1 of the time-delay relay closes, energizing the audible and visual alarm and immediately triggering the alarm bell. The strong audible and visual signal alerts the driver to remain alert and focused. At this point, the driver simply presses the reset switch button to disconnect the power to the time-delay relay KT, quickly clearing the alarm and allowing safe driving to resume. The time-delay relay then restarts its timing cycle, repeating continuously to remind the driver to drive safely. This innovative safety aid not only enhances the driver's alertness during long drives but also effectively reduces operational risks caused by fatigue or distraction.

[0019] To adjust the cycle of the audible and visual alarm, simply adjust the delay cycle of the Chint time-delay relay.

[0020] This utility model can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. A locomotive operation safety auxiliary device, characterized in that: The system includes an alarm circuit comprising a time-delay relay, a normally closed reset switch, and an alarm. The power supply of the time-delay relay is anti-interlocked with the 0-position contact of the driver's controller. The other end of the time-delay relay is connected in series with the normally closed reset switch and then connected to the locomotive power supply. One end of the alarm is connected in series with the normally open contact of the time-delay relay, and the other end is connected to the locomotive power supply.

2. The locomotive operation safety auxiliary device according to claim 1, characterized in that: The alarm is an audible and visual alarm.

3. The locomotive operation safety auxiliary device according to claim 2, characterized in that: The alarm is a Delixi sound and light alarm with a working voltage of 24V.

4. The locomotive operation safety auxiliary device according to claim 1, 2, or 3, characterized in that: The time delay relay used is the Chint DH48S-1Z time delay relay.

5. The locomotive operation safety auxiliary device according to claim 4, characterized in that: The locomotive's switching power supply is 24V.

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