Alarm device without falling rod

Abstract

A power supply outputs stable 12V safety voltage, is installed in a barrier machine, is connected with an infrared sensor, a relay, a time delay switch, an audible and visual alarm and a control switch through insulated wires, and provides electric energy for the whole device; the infrared sensor is fixedly installed on the outer side of the barrier, the sensing area of the infrared sensor covers the rising and landing activity range of the barrier, the infrared sensor is used for sensing the rising and landing state of the barrier in real time, the signal output end of the infrared sensor is connected with the signal input end of the relay through a shielding wire, and a sensed barrier state signal is stably transmitted to the relay. Therefore, all parts of the device cooperate, the device can timely detect the abnormity that the railing machine does not fall down for a long time and give an alarm, the 12V safety power supply has overvoltage and overcurrent protection, stable and safe power supply is guaranteed, the electromagnetic relay is matched with the digital time relay, the alarm time can be flexibly controlled, the warning effect of the audible and visual alarm is good, and the self-locking button switch is convenient to operate. And the convenience and the safety are improved.

Description

Technical Field

[0001] The present application relates to the technical field of traffic facilities, and in particular to a non-lowering pole alarm device. Background Art

[0002] In the modern traffic management system, barriers are widely used to control the entry and exit of vehicles in various vehicle traffic scenarios, such as highway toll lanes, overload lanes, parking lots, and community garage entrances and exits. With the continuous increase in traffic volume, especially in ETC unmanned lanes, the problem of lane toll barriers not lowering has become more and more prominent.

[0003] In the case of heavy traffic, if the barrier fails to lower, it will not only cause traffic congestion and affect the normal traffic order of vehicles, but also be used by criminals to cause the loss of vehicle tolls and bring economic losses to the traffic operation management department. The existing barrier system has many shortcomings in dealing with this problem.

[0004] First, in terms of detecting the status of the barrier machine, traditional technology lacks effective real-time monitoring means. It is impossible to accurately capture the abnormal situation of the barrier machine not lowering the bar for a long time in a timely manner, making it difficult to detect and handle the fault in time.

[0005] Secondly, in the application scenarios of barrier machines in the past, the "no-lowering alarm" function has been blank for a long time. Early barrier machines lacked design considerations for this key function, and the function was not integrated into the entire system, making it impossible to issue an alarm signal in time when the barrier machine encountered an abnormal situation where the bar did not lower, which brought many inconveniences to management and safety assurance.

[0006] With the development of technology and the promotion of actual needs, we took the lead in introducing the "no-bar lowering alarm" function in the barrier machine. However, the initial alarm device had certain shortcomings. The power supply method it adopted had defects in stability and safety, resulting in frequent failures of the equipment during operation, making the alarm function often ineffective and difficult to meet the requirements of actual applications.

[0007] After continuous research and development and improvement, we have optimized and upgraded the alarm function. Today, the optimized alarm device not only effectively solves the problem caused by power supply, greatly improves the stability and reliability of the equipment, but also can send out alarm signals in a timely and accurate manner when the barrier machine fails to lower the bar, providing a strong safety guarantee for related management work.

[0008] Furthermore, in the past application scenarios of barrier machines, improving the performance of sensing devices has always been a difficult problem in the industry. Traditional sensing equipment has a fixed sensitivity and is difficult to adapt to different installation environments and complex traffic conditions. For example, in the case of strong light interference, bad weather, etc., the accuracy and timeliness of the sensing are greatly reduced, and the take-off and landing status signals of the barrier machine cannot be stably transmitted to the subsequent control unit. At present, there is no sensing device on the market that can effectively solve this problem. The sensing device of this solution will have the function of adaptively adjusting the sensitivity, and can be intelligently adjusted according to different environments and traffic conditions to ensure stable and accurate signal transmission.

[0009] In addition, in terms of control circuit design, current barrier machines generally have deficiencies. Ordinary relays make it difficult to achieve precise control of the circuit, and the delay time of the delay device cannot be flexibly adjusted, which cannot meet the diverse needs for alarm triggering time in different scenarios. At the same time, the sound and light alarm effect is not ideal, the alarm volume and light flashing frequency cannot be adjusted, and it is difficult to attract enough attention in a noisy traffic environment, and it cannot achieve an effective warning purpose. At present, there is a lack of products on the market that can fully optimize the control circuit and meet diverse needs. The control circuit design submitted this time can achieve precise control of the circuit and flexibly adjust the delay time. At the same time, the alarm volume and light flashing frequency can also be freely adjusted according to the actual scenario, effectively improving the warning effect.

[0010] Finally, in terms of equipment operation and management, traditional devices lack convenient control methods. Under special circumstances, such as free holidays, it is difficult for maintenance personnel to conveniently control the operation of the alarm device, which affects the efficiency and flexibility of the equipment. At present, there is no mature and convenient control solution in the industry. The operation and management system of this solution allows maintenance personnel to easily control the equipment anytime and anywhere, greatly improving the efficiency and flexibility of equipment use.

[0011] In summary, the existing technology has many bottlenecks in solving the problem of barrier machines not lowering the bar. A new, efficient and reliable solution is urgently needed to improve the efficiency and safety of traffic management. This is also the original intention and background of the research and development of this non-lowering bar alarm device. Summary of the invention

[0012] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0013] To this end, the first purpose of this application is to provide an alarm device for not lowering the barrier. Through the coordinated work of various components, it can timely and accurately detect the abnormal situation that the barrier machine does not lower the barrier for a long time, and sound an alarm through an audible and visual alarm, effectively avoiding traffic congestion and loss of vehicle tolls.

[0014] The second purpose of the present application is to provide a non-pole lowering alarm device, which adopts a 12V safe voltage and a power supply with overvoltage and overcurrent protection functions, thereby ensuring the stability and safety of the power supply of the device and reducing the risk of equipment damage.

[0015] The third purpose of the present application is to provide an alarm device that does not lower the pole. The electromagnetic relay cooperates with a digital time relay that can accurately adjust the delay time, thereby realizing flexible control of the alarm time and meeting the needs of different scenarios.

[0016] The fourth purpose of the present application is to provide a non-lowering alarm device, which is an audible and visual alarm with a specific volume and light flashing frequency, can attract sufficient attention in various environments and has a significant warning effect.

[0017] The fifth purpose of the present application is to provide a non-lowering pole alarm device with a button switch with a self-locking function, which is convenient for maintenance personnel to operate and improves the convenience and safety of using the device.

[0018] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a non-lowering barrier alarm device, including a power supply, an infrared sensor, a relay, a delay switch, an audible and visual alarm, and a control switch, wherein the power supply outputs a stable 12V safety voltage, is installed inside the barrier machine, and is connected to the infrared sensor, the relay, the delay switch, the audible and visual alarm, and the control switch through insulated wires, respectively, to provide power for the entire device; the infrared sensor is fixedly installed on the outside of the barrier machine, and its sensing area covers the take-off and lowering range of the barrier machine, and is used to sense the take-off and lowering status of the barrier machine in real time, and its signal output end is connected to the signal input end of the relay through a shielded wire, and the sensed barrier machine status signal is stably transmitted to the relay; the relay is installed inside the barrier machine, one end is connected to the signal output end of the infrared sensor, and the other end is connected to the delay switch. The signal input end of the switch controls the on and off of the circuit according to the signal transmitted by the infrared sensor; the delay switch is also installed on the control circuit board inside the barrier machine, connected to the signal output end of the relay, and starts timing after receiving the signal transmitted by the relay. When the barrier machine is lifted for a preset 30 seconds, its signal output end outputs an electrical signal to connect the circuit of the sound and light alarm; the sound and light alarm is installed in a conspicuous position outside the barrier machine, and its power input end is connected to the signal output end of the delay switch, and a loud alarm sound and a flashing warning light are emitted when the circuit is connected; the control switch is connected in series between the power supply and the entire working circuit, one end of which is connected to the output end of the power supply, and the other end is connected to the main circuit where the infrared sensor, the relay, the delay switch and the sound and light alarm are located, and is used to control the on and off of the circuit of the entire device.

[0019] The non-lowering barrier alarm device of the embodiment of the present application has various components that work together to promptly detect the abnormality of the barrier machine not being lowered for a long time and alarm, thereby avoiding traffic congestion and loss of tolls. The 12V safety power supply has overvoltage and overcurrent protection to ensure stable and safe power supply. The electromagnetic relay and digital time relay cooperate to flexibly control the alarm time. The sound and light alarm has a good warning effect. The self-locking button switch is easy to operate, thereby improving convenience and safety.

[0020] In addition, the non-dropping pole alarm device proposed in the present application may also have the following additional technical features:

[0021] In one embodiment of the present application, the power supply adopts a switching power supply with overvoltage protection and overcurrent protection functions to ensure the stability and safety of the power supply of the device.

[0022] In one embodiment of the present application, the infrared sensor is a pyroelectric infrared sensor, and its sensing sensitivity can be adjusted to adapt to different installation environments and usage requirements.

[0023] In one embodiment of the present application, the relay is an electromagnetic relay having normally open and normally closed contacts, and the on-off control of the delay switch circuit is achieved by controlling the opening and closing of the contacts.

[0024] In one embodiment of the present application, the delay switch adopts a digital time relay, and its delay time can be accurately adjusted in the range of 0 seconds to 3 minutes according to actual needs.

[0025] In one embodiment of the present application, the alarm volume of the sound and light alarm is between 80-120 decibels, and the flashing frequency of the warning light is 2-5 times per second to achieve a striking warning effect.

[0026] In one embodiment of the present application, the control switch is a push button switch with a self-locking function, which is convenient for electromechanical maintenance personnel to operate and can effectively cut off the power supply of the device when in the closed state.

[0027] Power supply: It uses high-performance security switching power supply DS-2FA1202-BW, which outputs a stable 12V safe voltage and has overvoltage and overcurrent protection functions to ensure stable and safe power supply for the device.

[0028] Infrared sensor: SICK GRTE18 is selected, with adjustable sensing sensitivity and waterproof function to adapt to different installation environments and usage requirements.

[0029] Relay: Use Chint RS-NXJ-2Z / C1, which has normally open and normally closed contacts, and can accurately control the on and off of the delayed switch circuit.

[0030] Delay switch: Using CHINT JSZ3A-A, the delay time can be precisely adjusted within the range of 0 seconds to 3 minutes through programming.

[0031] Sound and light alarm: It uses LTD-1101 rotating sound and light alarm, with an alarm volume of 80-120 decibels, and the warning light flashes 2-5 times per second. The warning effect is significant and it is waterproof.

[0032] Control switch: It adopts CHINT NP4 self-locking and self-resetting push button switch, which has a self-locking function, making it easy for electromechanical maintenance personnel to operate and effectively cutting off the power supply of the device when closed.

[0033] The advantages of this application compared with the existing technology are:

[0034] (1) Through the coordinated work of various components, the abnormal situation that the barrier machine does not lower the bar for a long time can be detected in a timely and accurate manner, and an alarm can be sounded through the sound and light alarm, effectively avoiding traffic congestion and loss of vehicle tolls.

[0035] (2) The power supply uses a 12V safe voltage and has overvoltage and overcurrent protection functions, which ensures the stability and safety of the device's power supply and reduces the risk of equipment damage.

[0036] (3) The electromagnetic relay is combined with a digital time relay that can accurately adjust the delay time, which enables flexible control of the alarm time to meet the needs of different scenarios.

[0037] (4) Sound and light alarms with specific volume and light flashing frequency can attract sufficient attention in various environments and have significant warning effects.

[0038] (5) The push button switch with self-locking function is convenient for maintenance personnel to operate, which improves the convenience and safety of the device.

[0039] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0041] Figure 1 It is a three-dimensional diagram of a non-dropping pole alarm device according to one embodiment of the present application;

[0042] Figure 2 The present invention is a connection diagram of the connection relationship of the components of a non-lowering pole alarm device according to an embodiment of the present application.

[0043] As shown in the figure: 1. Power supply; 2. Infrared sensor; 3. Relay; 4. Delay switch; 5. Sound and light alarm; 6. Control switch. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0045] The following describes the non-lowering pole alarm device according to an embodiment of the present application in conjunction with the accompanying drawings.

[0046] like Figure 1-Figure 2 As shown, the non-lowering pole alarm device of the embodiment of the present application may include a power supply 1, an infrared sensor 2, a relay 3, a delay switch 4, an audible and visual alarm 5 and a control switch 6.

[0047] Device installation and connection:

[0048] First, install the power supply 1 in a suitable position inside the barrier machine. The power supply 1 uses a switching power supply that outputs a stable 12V safe voltage and is connected to other components through insulated wires. The use of insulated wires effectively avoids current leakage and ensures the safety and stability of the device.

[0049] The infrared sensor 2 is fixedly installed on the outside of the barrier machine to ensure that its sensing area can completely cover the take-off and landing range of the barrier machine. Its signal output end is connected to the signal input end of the relay 3 through a shielded wire. The shielded wire can effectively prevent external electromagnetic interference and ensure stable transmission of the sensing signal.

[0050] The relay 3 and the delay switch 4 are both installed inside the barrier machine. One end of the relay 3 is connected to the signal output end of the infrared sensor 2, and the other end is connected to the signal input end of the delay switch 4; the signal output end of the delay switch 4 is connected to the power input end of the sound and light alarm 5.

[0051] The sound and light alarm 5 is installed in a conspicuous position outside the barrier machine to attract the attention of relevant personnel.

[0052] The control switch 6 is connected in series between the power supply 1 and the entire working circuit, so as to facilitate the electromechanical maintenance personnel to control the on-off of the device circuit.

[0053] Workflow:

[0054] Normal traffic state: When the vehicle passes the barrier normally, the barrier is lifted and lowered normally. In this process, the infrared sensor 2 senses the lifting and lowering state of the barrier in real time. When the barrier is lowered, the infrared sensor 2 does not detect the lifting action of the barrier and will not send a signal to the relay 3. At this time, the entire alarm device is in standby state and no alarm action is generated.

[0055] Abnormal situation detection: Once the barrier machine is lifted, due to a malfunction or other reasons, it does not fall within the preset 30 seconds. The infrared sensor 2 continues to sense that the barrier machine is in the lifted state, and it will stably transmit the barrier machine status signal to the relay 3 through the shielded wire.

[0056] Signal processing and control: After receiving the signal transmitted by the infrared sensor 2, the relay 3 controls the on and off of the circuit according to the characteristics of its normally open and normally closed contacts. At this time, the relay 3 acts to turn on the circuit, so that the delay switch 4 receives the signal.

[0057] Delay and alarm triggering: The delay switch 4 starts timing after receiving the signal transmitted by the relay 3. When the timing reaches the preset 30 seconds, the signal output end of the delay switch 4 outputs an electrical signal to connect the circuit of the sound and light alarm 5 (the delay time can be in the range of 0 seconds to 3 minutes, and can be accurately adjusted according to actual needs).

[0058] Alarm warning: After the circuit is connected, the sound and light alarm 5 will immediately emit a loud alarm sound and flashing warning light. The alarm volume is between 80-120 decibels, and the flashing frequency of the warning light is 2-5 times per second. It can effectively attract the attention of the staff in a noisy environment, and prompt the abnormal situation that the barrier machine does not lower the bar for a long time.

[0059] Special situation handling: In special situations, such as during holidays, when the toll barrier needs to be raised for a long time without being lowered, the electromechanical maintenance personnel can cut off the connection between the power supply 1 and the entire working circuit through the control switch 6 to turn off the barrier lifting alarm function. When the alarm function needs to be restored, the control switch 6 is operated again to connect the circuit.

[0060] In one embodiment of the present application, Figure 1-Figure 2 As shown, the power supply 1 adopts a switching power supply with overvoltage protection and overcurrent protection functions to ensure the stability and safety of the power supply of the device.

[0061] It can be understood that the normal power supply process is: when the entire device is connected to the external power supply system, the power supply 1 starts to work, converts the input voltage into a stable 12V safety voltage, and supplies power to the infrared sensor 2, relay 3, delay switch 4, sound and light alarm 5 and control switch 6 through insulated wires, providing basic energy guarantee for the stable operation of the entire device. Under normal working conditions, each component relies on the stable power provided by the power supply 1 and operates according to the established procedures. For example, the infrared sensor 2 uses the power provided by the power supply 1 to continuously monitor the rise and fall status of the barrier machine. Once it detects that the barrier machine is lifted, it will transmit the signal to the relay 3.

[0062] Overvoltage protection mechanism: In actual use scenarios, the external voltage may fluctuate abnormally. When power supply 1 detects that the input voltage exceeds its set overvoltage protection threshold, the overvoltage protection circuit is immediately activated. At this time, power supply 1 will quickly take measures, such as cutting off the output or adjusting the output voltage, to prevent excessive voltage from being transmitted to other components, such as infrared sensor 2, relay 3, etc. Because excessive voltage may break down the electronic components of these components, causing damage to the equipment, and then rendering the entire alarm device ineffective. After the overvoltage protection function is activated, this situation is avoided, ensuring the safety of the device when the voltage is abnormal, and ensuring that the device can still work normally after the normal voltage is restored.

[0063] Overcurrent protection mechanism: Similarly, when a short circuit or other abnormal conditions occur in a component inside the device, causing the current to suddenly increase and exceed the overcurrent protection threshold set by power supply 1, the overcurrent protection circuit will take effect. Power supply 1 will automatically reduce the output current or cut off the output to prevent excessive current from damaging the entire circuit. For example, if a short circuit occurs inside relay 3 and the current increases sharply, the overcurrent protection function of power supply 1 will be activated in time to avoid burning relay 3 and other connected components such as delay switch 4 and sound and light alarm 5 due to high current, thereby ensuring the stability of the entire device and facilitating subsequent troubleshooting and repair.

[0064] In one embodiment of the present application, Figure 1-Figure 2 As shown, the infrared sensor 2 is a pyroelectric infrared sensor, and its sensing sensitivity can be adjusted to adapt to different installation environments and usage requirements.

[0065] It is understandable that one of the great advantages of pyroelectric infrared sensors is that their sensing sensitivity is adjustable. This feature is particularly important under different installation environments and usage requirements. For example, in some highway toll lanes with heavy traffic and more environmental interference, factors such as changes in external light and frequent obstructions by passing vehicles may affect the sensing effect. At this time, we can adjust the sensing sensitivity of infrared sensor 2 so that it can more accurately capture the take-off and landing status of the barrier machine.

[0066] The adjustment process is usually completed through the adjustment knob of the infrared sensor 2 or the matching setting software. The staff will fine-tune the sensing sensitivity according to the actual installation environment and the traffic pattern of passing vehicles. When the sensing sensitivity is adjusted to a suitable value, the infrared sensor 2 enters the real-time monitoring state. Once the barrier machine is lifted, the infrared changes it emits will be quickly captured by the infrared sensor 2.

[0067] Subsequently, the infrared sensor 2 transmits the sensed barrier machine status signal to the relay 3 via the shielded wire in a stable manner. The shielded wire can effectively prevent external electromagnetic interference and ensure the accuracy and stability of signal transmission. After receiving the signal, the relay 3 controls the on and off of the circuit according to the signal status, and then determines whether the delay switch 4 starts timing. If the barrier machine rises and falls normally, the signal transmitted by the infrared sensor 2 will keep the relay 3 in a normal circuit state; and when the barrier machine is lifted for a long time without falling, the signal continuously transmitted by the infrared sensor 2 will trigger the relay 3 to operate, starting the first step of the subsequent alarm process.

[0068] In this way, the pyroelectric infrared sensor 2 with adjustable sensing sensitivity can adapt to various complex installation environments and usage requirements, ensuring that the non-lowering alarm device can detect the abnormal state of the barrier machine in a timely and accurate manner, thereby ensuring the stable operation of the entire traffic management system.

[0069] In one embodiment of the present application, Figure 1-Figure 2 As shown, the relay 3 is an electromagnetic relay having normally open and normally closed contacts, and the on-off control of the delay switch 4 circuit is achieved by controlling the opening and closing of the contacts.

[0070] It can be understood that the relay 3 used in the present device is an electromagnetic relay, which has normally open and normally closed contacts, and the state change of these two contacts determines the on-off state of the delay switch 4 circuit.

[0071] When the whole device is in the initial state or the barrier machine is normally raised and lowered, the normally closed contact of the relay 3 is in the closed state and the normally open contact is in the open state. At this time, the stable 12V safety voltage output by the power supply 1 supplies power to other parts of the device through the circuit where the normally closed contact is located, but does not directly trigger the delay switch 4 to start working.

[0072] Once the infrared sensor 2 senses the abnormal situation that the barrier machine is lifted for a long time without being lowered, it will stably transmit the sensed barrier machine status signal to the signal input end of the relay 3 through the shielded wire. When the electromagnetic relay 3 receives the signal from the infrared sensor 2, the electromagnetic coil inside it will generate a magnetic field. Under the action of the magnetic field, the armature of the relay 3 moves, causing the normally closed contact that was originally closed to open and the normally open contact that was originally opened to close.

[0073] After the normally open contact is closed, the circuit changes, and the electric energy output by the power supply 1 is transmitted to the signal input end of the delay switch 4 through the circuit where the normally open contact is located. After receiving the signal, the delay switch 4 starts to enter the timing state. When the timing reaches the preset 30 seconds, the signal output end of the delay switch 4 outputs an electrical signal, connecting the circuit of the sound and light alarm 5, causing it to emit a loud alarm sound and flashing warning lights, reminding relevant personnel to pay attention to the abnormality of the barrier machine.

[0074] When the barrier machine descends normally within the preset time, the signal transmitted by the infrared sensor 2 to the relay 3 disappears, the electromagnetic coil inside the electromagnetic relay 3 loses its magnetic field, the armature returns to its original position under the action of the reset spring, the normally open contact opens, the normally closed contact closes again, and there is no signal input to the signal input end of the delay switch 4, the timing stops, and the sound and light alarm 5 will not be triggered.

[0075] Through the precise control of the normally open and normally closed contacts of the electromagnetic relay 3, effective management of the on-off of the delay switch 4 circuit is achieved, thereby ensuring that the non-lowering alarm device can accurately and promptly respond to abnormal conditions of the barrier machine, ensuring the stable operation of the entire traffic management system.

[0076] In one embodiment of the present application, Figure 1-Figure 2 As shown, the delay switch 4 adopts a digital time relay, and its delay time can be accurately adjusted in the range of 0 seconds to 3 minutes according to actual needs.

[0077] It is understandable that before the device is put into use, the technicians will set the delay time of the delay switch 4 according to the actual scene requirements. Because it uses a digital time relay, it can be accurately adjusted within the range of 0 seconds to 3 minutes. For example, at a highway toll gate with heavy traffic and frequent ups and downs of the barrier machine, the delay time may be set to 30 seconds, so that there will be no false alarms due to the short-term lifting of the barrier machine, and it can also respond to abnormal situations in time; and at some parking lot entrances and exits with less traffic, in order to avoid alarms due to the long-term lifting of the barrier machine due to occasional vehicle stops, the delay time can be appropriately extended to 45 seconds.

[0078] When adjusting the delay time, the knob of the delay switch 4 is used for adjustment. When the delay switch 4 receives the signal from the relay 3, it starts timing according to the set delay time. During the timing process, even if the barrier machine is briefly lowered and then raised, as long as the accumulated lifting time does not reach the set delay time, the delay switch 4 will not trigger the sound and light alarm 5. Only when the barrier machine is lifted for a preset delay time, the signal output end of the delay switch 4 will output an electrical signal, connecting the circuit of the sound and light alarm 5, causing it to emit a loud alarm sound and flashing warning lights, reminding the staff to pay attention to abnormal conditions of the barrier machine.

[0079] In one embodiment of the present application, Figure 1-Figure 2 As shown, the alarm volume of the sound and light alarm 5 is between 80-120 decibels, and the flashing frequency of the warning light is 2-5 times per second to achieve a striking warning effect.

[0080] It can be understood that when the delay switch 4 receives the signal from the relay 3 and starts timing, when the barrier machine lifting time reaches the preset delay time (such as 30 seconds), the signal output end of the delay switch 4 outputs an electrical signal, and the electrical signal is transmitted to the power input end of the sound and light alarm 5, thereby connecting the circuit of the sound and light alarm 5 and starting it to work.

[0081] After the sound and light alarm 5 is activated, its alarm volume will be maintained between 80-120 decibels. In actual application scenarios, such as highway toll lanes, parking lot entrances and exits, etc., this volume range can effectively penetrate the noisy background sound, whether it is the hustle and bustle of traffic during the day or the relatively quiet but still ambient noise at night, the staff can clearly hear the alarm sound at a certain distance. For example, in a highway toll booth, even if the staff is concentrating on handling other matters, they can quickly be attracted by the alarm sound in this volume range and notice possible abnormal conditions of the barrier machine.

[0082] At the same time, the warning light of the sound and light alarm 5 will flash at a frequency of 2-5 times per second. This flashing frequency has been carefully designed so that it will not be too frequent to cause visual fatigue to the human eye, nor will it be too long to be noticed. In bright daytime, the fast flashing lights can still be more eye-catching in the sun; at night when the light is dim, the regularly flashing lights can also be clearly seen from a distance, further enhancing the warning effect. Whether in scenes with heavy traffic and complex environments, or in relatively simple parking lots, the unique sound and light warnings can let relevant personnel quickly know the abnormal situation of the barrier machine not lowering the bar for a long time, so that timely measures can be taken to deal with it and ensure the normal operation of traffic order.

[0083] In one embodiment of the present application, Figure 1-Figure 2 As shown, the control switch 6 is a push button switch with a self-locking function, which is convenient for electromechanical maintenance personnel to operate and can effectively cut off the power supply of the device when in the closed state.

[0084] It is understandable that when the device is operating normally, the control switch 6 is in a normally open state. At this time, the power supply 1 outputs a stable 12V safety voltage, and the current starts from the output end of the power supply 1, passes through the control switch 6, and flows to the main circuit where the infrared sensor 2, the relay 3, the delay switch 4 and the sound and light alarm 5 are located, providing power to these components, so that the entire alarm device is in a normal working state and monitors the rise and fall of the barrier machine at any time.

[0085] When the electromechanical maintenance personnel need to maintain and overhaul the device, or encounter special circumstances, such as during the free holidays, the toll barrier needs to be raised for a long time without lowering the bar, then the alarm device needs to be turned off. The maintenance personnel only need to press the control switch 6. Due to its self-locking function, the switch will remain in the closed state after being pressed. At this time, the circuit is cut off, and the current output by the power supply 1 cannot continue to flow to other components. This means that the infrared sensor 2 loses power and no longer senses the status of the barrier machine; the relay 3 is also unable to receive the signal from the infrared sensor 2 due to the power failure, and thus cannot control the delay switch 4; the delay switch 4 stops timing after the power is cut off, and the sound and light alarm 5 will not emit an alarm sound and light warning due to no power input.

[0086] When the maintenance work is completed or the special situation is over and the alarm device needs to be restored to normal operation, the electromechanical maintenance personnel press the control switch 6 again, the switch is unlocked and restored to the normally open state. The current output by the power supply 1 reconnects the entire circuit, and the power supply to each component is restored. The infrared sensor 2 begins to monitor the lifting and lowering status of the barrier in real time, and the relay 3, delay switch 4 and sound and light alarm 5 are also restored to normal working state. The device has the ability to detect abnormalities of the barrier and alarm again.

[0087] It should be noted that the control method of the present application can be automatically controlled by a controller, and the control method of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field, and the present application is mainly used to protect mechanical structures, so the present application will no longer explain the control method and circuit connection in detail.

[0088] Specifically, in the actual implementation process, it is assumed that a non-lowering alarm device is installed in a toll lane of a highway:

[0089] In daily work, when a vehicle enters the toll lane normally, the barrier control system is triggered and the barrier is lifted normally. At this time, the infrared sensor 2 monitors the lifting state of the barrier in real time and transmits the signal to the relay 3 stably through the shielded wire. However, due to the normal passage of the vehicle, the barrier will fall in a short time. Within the preset 30 seconds, the barrier completes the lowering action. The infrared sensor 2 detects that the barrier has fallen and no longer sends a continuous lifting signal to the relay 3. The normally open contact of the relay 3 remains disconnected, and the normally closed contact remains closed. The delay switch 4 will not receive a signal and will not start timing. The sound and light alarm 5 remains silent, and the entire device maintains a normal standby monitoring process.

[0090] However, one day the barrier machine malfunctioned. When a car passed, the barrier machine was lifted, but failed to fall normally. The infrared sensor 2 continuously sensed that the barrier machine was in the lifted state. After a certain period of time (such as 3 seconds, to ensure that it was not a normal short-term lift), the barrier machine status signal was stably transmitted to the relay 3 through the shielded wire. After receiving the signal, the internal electromagnetic coil of the relay 3 generates a magnetic field, the armature moves, the normally open contact closes, and the normally closed contact opens. The power output of the power supply 1 is transmitted to the signal input end of the delay switch 4 through the circuit where the normally open contact is located, and the delay switch 4 starts timing.

[0091] Assume that the delay time of the delay switch 4 is set to 30 seconds based on the characteristics of heavy traffic volume and frequent rise and fall of the barrier machine in the toll lane of the expressway. During the 30-second timing process, even if the barrier machine shakes slightly, as long as it has not completely fallen, the delay switch 4 will continue to time. When the timing reaches 30 seconds, the signal output end of the delay switch 4 outputs an electrical signal to connect the circuit of the sound and light alarm 5. The sound and light alarm 5 immediately emits an alarm sound of 80-120 decibels, and the warning light flashes at a frequency of 2-5 times per second, attracting the attention of the staff in the toll booth. The staff learns that the barrier machine has an abnormal situation of not lowering the bar for a long time, and goes to deal with it in time.

[0092] During the process, if the staff needs to temporarily turn off the alarm device for maintenance operations, they can press the control switch 6. Due to its self-locking function, the switch remains closed, the current output by the power supply 1 is cut off, and the entire device stops working, which is convenient for the staff to work safely. After the maintenance is completed, the control switch 6 is pressed again, the device resumes normal power supply, and each component re-enters the working state, continuing to monitor the rise and fall of the barrier machine to ensure the normal order of the toll lanes on the highway.

[0093] In summary, the barrier not lowering alarm device in the embodiment of the present application, the various components of the device work together, can promptly detect the abnormality of the barrier machine not lowering the barrier for a long time and alarm, so as to avoid traffic congestion and loss of tolls. The 12V safety power supply has overvoltage and overcurrent protection to ensure stable and safe power supply. The electromagnetic relay and the digital time relay can cooperate to flexibly control the alarm time. The sound and light alarm has a good warning effect. The self-locking button switch is easy to operate, which improves convenience and safety.

[0094] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0096] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. The non-dropping alarm device is characterized by: It comprises a power supply (1), an infrared sensor (2), a relay (3), a time delay switch (4), an audible and visual alarm (5) and a control switch (6), wherein: The power supply (1) outputs a stable 12V safety voltage, is installed inside the barrier machine, and is connected to the infrared sensor (2), the relay (3), the delay switch (4), the sound and light alarm (5) and the control switch (6) through insulated wires to provide power for the entire device; The infrared sensor (2) is fixedly mounted on the outside of the barrier machine, and its sensing area covers the range of the barrier machine's lifting and lowering activities, and is used to sense the lifting and lowering status of the barrier machine in real time. Its signal output end is connected to the signal input end of the relay (3) through a shielded wire, and the sensed barrier machine status signal is stably transmitted to the relay (3); The relay (3) is installed on a control circuit board inside the barrier machine, one end of which is connected to the signal output end of the infrared sensor (2), and the other end is connected to the signal input end of the delay switch (4), and controls the on and off of the circuit according to the signal transmitted by the infrared sensor (2); The delay switch (4) is also installed inside the barrier machine and connected to the signal output end of the relay (3). After receiving the signal transmitted by the relay (3), the timing starts. When the barrier machine is lifted for a preset time of 30 seconds, the signal output end outputs an electrical signal to connect the circuit of the sound and light alarm (5). The sound and light alarm (5) is installed at a conspicuous position outside the barrier machine, and its power input end is connected to the signal output end of the delay switch (4). When the circuit is connected, it emits a loud alarm sound and a flashing warning light; The control switch (6) is connected in series between the power supply (1) and the entire working circuit, with one end connected to the output end of the power supply (1) and the other end connected to the main circuit where the infrared sensor (2), the relay (3), the delay switch (4) and the sound and light alarm (5) are located, and is used to control the on and off of the circuit of the entire device.

2. The non-lowering pole alarm device according to claim 1 is characterized in that: The power supply (1) adopts a switching power supply with overvoltage protection and overcurrent protection functions to ensure the stability and safety of the power supply of the device.

3. The non-dropping pole alarm device according to claim 1 is characterized in that: The infrared sensor (2) is a pyroelectric infrared sensor, and its sensing sensitivity can be adjusted to adapt to different installation environments and usage requirements.

4. The non-lowering pole alarm device according to claim 1 is characterized in that: The relay (3) is an electromagnetic relay having normally open and normally closed contacts, and the on / off control of the delay switch (4) circuit is achieved by controlling the opening and closing of the contacts.

5. The non-lowering pole alarm device according to claim 1 is characterized in that: The delay switch (4) adopts a digital time relay, and its delay time can be accurately adjusted in the range of 0 seconds to 3 minutes according to actual needs.

6. The non-dropping pole alarm device according to claim 1, characterized in that: The alarm volume of the sound and light alarm (5) is between 80 and 120 decibels, and the flashing frequency of the warning light is 2 to 5 times per second, so as to achieve a striking warning effect.

7. The non-dropping pole alarm device according to claim 1 is characterized in that: The control switch (6) is a push button switch with a self-locking function, which is convenient for electromechanical maintenance personnel to operate and can effectively cut off the power supply of the device when in a closed state.

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