Alarm device without falling rod

Abstract

A power supply outputs stable 12V safety voltage, is installed in a barrier machine, is respectively 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 utility model relates to the technical field of traffic facilities, especially relates to non-lowering pole alarm device. BACKGROUND

[0002] In the modern traffic management system, various vehicle passing scenes, such as highway toll lane, oversize vehicle control lane, and parking lot, community garage entrance and exit, etc., all widely use barrier machines to control the entry and exit of vehicles. With the continuous increase of traffic flow, especially in the ETC unattended special lane, the problem of non-lowering of the lane toll barrier machine is increasingly prominent.

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

[0004] First of all, in terms of detecting the state of the barrier machine, the traditional technology lacks effective real-time monitoring means. It cannot accurately capture the abnormal situation of the barrier machine not lowering the pole for a long time, making it difficult to discover and handle the fault in time.

[0005] Secondly, in the past barrier machine application scene, the "non-lowering pole alarm" function has been in a blank state for a long time. The early barrier machine lacks design consideration of this key function, and the function is not integrated into the whole system, so that when the barrier machine fails to lower the pole, it cannot send an alarm signal in time, bringing many inconveniences to management and safety protection.

[0006] With the development of technology and the promotion of actual demand, we first introduced the "non-lowering pole alarm" function in the barrier machine. However, the early alarm device has some shortcomings. The power supply method used has defects in stability and safety, which causes frequent failures of the equipment during operation, making the alarm function often ineffective and difficult to meet the requirements of actual application.

[0007] After continuous research and development and improvement, we have optimized and upgraded the alarm function. Now, the optimized alarm device not only effectively solves the problem of power supply, greatly improves the stability and reliability of the equipment, but also can send alarm signals in time and accurately when the barrier machine fails to lower the pole, providing strong safety protection for related management work.

[0008] Moreover, in the past application scenarios of barrier machines, the performance improvement of the sensing device has always been a problem in the industry. The sensing sensitivity of the traditional sensing device is fixed, and it is difficult to adapt to different installation environments and complex traffic conditions. For example, in strong light interference, bad weather and other conditions, the accuracy and timeliness of sensing are greatly discounted, and the barrier machine cannot stably transmit the lifting state signal to the subsequent control unit. There is no sensing device on the market that can effectively solve this problem. The sensing device of the present scheme will have the function of self-adaptive sensitivity adjustment, and can intelligently adjust according to different environments and traffic conditions to ensure the stability and accuracy of signal transmission.

[0009] In addition, in terms of control circuit design, the current barrier machine generally has shortcomings. Ordinary relays cannot achieve precise control of the circuit, and the delay time of the delay device cannot be flexibly adjusted, which cannot meet the diversified needs of alarm trigger time in different scenarios. At the same time, the sound and light alarm effect is not ideal, and the alarm volume and light flicker frequency cannot be adjusted, which is difficult to attract enough attention in a noisy traffic environment and cannot achieve the purpose of effective warning. There is a lack of products on the market that can fully optimize the control circuit and meet the diversified needs. The control circuit design of this application realizes precise control of the circuit and can flexibly adjust the delay time, and the alarm volume and light flicker frequency can also be freely adjusted according to the actual scene, effectively improving the warning effect.

[0010] Finally, in terms of operation and management of the device, the traditional device lacks a convenient control method. Maintenance personnel have difficulty in conveniently controlling the operation of the alarm device in special situations such as holiday free periods, affecting the efficiency and flexibility of the device. There is no mature and convenient control scheme in the industry at present. The operation and management system of the present scheme can easily control the device at any time and anywhere, greatly improving the efficiency and flexibility of the device.

[0011] In summary, the existing technology has many bottlenecks in solving the problem of barrier machine not descending, and a new and efficient and reliable solution is needed to improve the efficiency and safety of traffic management, which is the original intention and background of the development of the present not descending alarm device. Content of the utility model

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

[0013] To this end, the utility model discloses a purpose in not lowering the pole alarm device, and the cooperation of each part of the device can detect the abnormality of the long time of not lowering the pole of the railing machine and alarm in time, avoid traffic confusion and toll loss, 12V safety power supply has overvoltage and overcurrent protection, guarantees the stable safety of power supply, electromagnetic relay and digital time relay cooperate, can control alarm time flexibly, the warning effect of audible and light alarm is good, the self -lock button switch is convenient operation, improves the convenience and security.

[0014] To achieve the above object, the utility model proposes a not lowering the pole alarm device including power, infrared inductor, relay, time delay switch, audible and light alarm and control switch, wherein, the power output stable 12V safety voltage is installed in the railing machine, is connected with infrared inductor, relay, time delay switch, audible and light alarm and control switch respectively through insulated wire, provides electric energy for the whole device, infrared inductor is fixedly installed on the outside of railing machine, and its sensing area covers the lifting movable range of railing machine, is used for sensing the lifting state of railing machine in real time, its signal output end is connected with the signal input end of relay through shielding wire, and the railing machine state signal sensed is stably transmitted to relay, the relay is installed on the control circuit board in the railing machine, one end is connected with the signal output end of infrared inductor, and the other end is connected with the signal input end of time delay switch, and the on-off of control circuit is controlled according to the signal transmission of infrared inductor, the time delay switch is also installed in the railing machine and is connected with the signal output end of relay, starts timing after receiving the signal transmission of relay, when the lifting time of railing machine reaches the preset 30 seconds, its signal output end outputs electric signal, and the circuit of audible and light alarm is turned on, the audible and light alarm is installed at the eye-catching position outside railing machine, and its power input end is connected with the signal output end of time delay switch, and when the circuit is turned on, loud alarm sound and flashing warning light are emitted, the control switch is connected between the power and whole working circuit, one end is connected with the output end of power, and the other end is connected with the main circuit where infrared inductor, relay, time delay switch and audible and light alarm are located, and is used for controlling the on-off of whole device circuit.

[0015] The utility model discloses a not lowering the pole alarm device, and the cooperation of each part of the device can detect the abnormality of the long time of not lowering the pole of the railing machine and alarm in time, avoid traffic confusion and toll loss, 12V safety power supply has overvoltage and overcurrent protection, guarantees the stable safety of power supply, electromagnetic relay and digital time relay cooperate, can control alarm time flexibly, the warning effect of audible and light alarm is good, the self -lock button switch is convenient operation, improves the convenience and security.

[0016] In addition, the not lowering the pole alarm device proposed according to the application can also have the following additional technical features:

[0017] Specifically, the power supply adopts a switching power supply with overvoltage protection and overcurrent protection functions to ensure the stability and safety of the device power supply.

[0018] Specifically, the infrared sensor is a pyroelectric infrared sensor, and the sensing sensitivity thereof can be adjusted to adapt to different installation environments and use requirements.

[0019] Specifically, the relay is an electromagnetic relay having normally open and normally closed contacts, and the on-off control of the delay switch circuit is realized by controlling the opening and closing of the contacts.

[0020] Specifically, the delay switch adopts a digital time relay, and the delay time thereof can be accurately adjusted in the range of 0 seconds-3 minutes according to actual requirements.

[0021] Specifically, the alarm volume of the sound-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.

[0022] Specifically, the control switch is a 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 in the off state.

[0023] Power supply: high-performance security switching power supply DS-2FA1202-BW is adopted, and stable 12V safe voltage is outputted, overvoltage and overcurrent protection functions are provided, and the stability and safety of the device power supply are ensured.

[0024] Infrared sensor: Sik GRTE18 is selected, the sensing sensitivity can be adjusted, and the waterproof function is provided, so that different installation environments and use requirements can be adapted.

[0025] Relay: CHINT RS-NXJ-2Z / C1 is adopted, and the normally open and normally closed contacts are provided, and the on-off control of the delay switch circuit is accurately controlled.

[0026] Delay switch: CHINT JSZ3A-A is adopted, and the delay time can be accurately adjusted in the range of 0 seconds-3 minutes through programming.

[0027] Sound-light alarm: LTD-1101 rotary sound-light alarm is adopted, the alarm volume is 80-120 decibels, the warning light flashing frequency is 2-5 times per second, the warning effect is remarkable, and the waterproof function is provided.

[0028] Control switch: CHINT NP4 self-locking and self-resetting button switch is adopted, and the self-locking function is provided, which is convenient for electromechanical maintenance personnel to operate, and the power supply of the device can be effectively cut off in the off state.

[0029] Compared with the prior art, the utility model has the advantages that:

[0030] (1) Through the cooperation of each part, the abnormal situation of the barrier machine not lowering the rail for a long time can be detected in time and accurately, and an alarm is sent through the sound and light alarm, effectively avoiding the problems of traffic confusion and vehicle toll loss.

[0031] (2) The power supply with 12V safe voltage and overvoltage and overcurrent protection function guarantees the stability and safety of device power supply and reduces the risk of equipment damage.

[0032] (3) The digital time relay with electromagnetic relay and accurate delay time adjustment realizes flexible control of alarm time and meets different scene requirements.

[0033] (4) The sound and light alarm with specific volume and light flashing frequency can attract enough attention in various environments, and the warning effect is remarkable.

[0034] (5) The button switch with self-locking function is convenient for maintenance personnel to operate, and improves the convenience and safety of device use.

[0035] The additional aspects and advantages of the present application will be partially given in the following description, some will become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0037] Fig. 1 It is a perspective view of the non-lowering rail alarm device of one embodiment of the present application.

[0038] Fig. 2 It is a connection diagram of the connection relationship of each part of the non-lowering rail alarm device of one embodiment of the present application.

[0039] 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

[0040] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0041] The non-lowering rod alarm device is described below with reference to the drawings.

[0042] As Figs. 1-2 shown, the non-lowering rod alarm device 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.

[0043] Device installation and connection:

[0044] First, the power supply 1 is installed at a suitable position inside the railing machine. The power supply 1 is selected as a switching power supply with stable 12V safe voltage output, which 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.

[0045] The infrared sensor 2 is fixedly installed on the outside of the railing machine, ensuring that its sensing area can completely cover the lifting and lowering range of the railing machine. The signal output end thereof 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.

[0046] The relay 3 and the time delay switch 4 are both installed inside the railing 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 time delay switch 4; the signal output end of the time delay switch 4 is connected to the power input end of the audible and visual alarm 5.

[0047] The audible and visual alarm 5 is installed at a conspicuous position on the outside of the railing machine, which is convenient for attracting the attention of relevant personnel.

[0048] The control switch 6 is connected in series between the power supply 1 and the entire working circuit, which is convenient for the mechanical and electrical maintenance personnel to control the on-off of the device circuit.

[0049] Working process:

[0050] Normal passage state: when the vehicle normally passes through the railing machine, the railing machine normally rises and falls. In this process, the infrared sensor 2 senses the lifting and lowering state of the railing machine in real time. When the railing machine falls, the infrared sensor 2 does not detect the lifting action of the railing machine, and does not send a signal to the relay 3, at this time, the entire alarm device is in standby state and does not produce alarm action.

[0051] Abnormal situation detection: once the railing machine is lifted, due to failure or other reasons, it does not fall within the preset 30 seconds, the infrared sensor 2 continuously senses that the railing machine is in the lifted state, and then transmits the railing machine state signal to the relay 3 through the shielded wire.

[0052] Signal processing and control: after receiving the signal transmitted by the infrared sensor 2, the relay 3 controls the on-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.

[0053] 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 electric signal to turn on the circuit of the sound and light alarm 5 (the delay time can be accurately adjusted in the range of 0 seconds-3 minutes according to actual needs).

[0054] Alarm warning: after the circuit is turned on, the sound and light alarm 5 immediately emits a loud alarm sound and flashes warning light. The alarm volume is between 80-120 decibels, and the flashing frequency of the warning light is 2-5 times per second, which can effectively attract the attention of the staff in a noisy environment and prompt the abnormal situation of the barrier machine lifting for a long time.

[0055] Special situation processing: in special situations such as free periods during holidays, the barrier needs to be lifted for a long time without lowering, and the mechanical and electrical maintenance personnel can disconnect the power supply 1 from the entire working circuit by controlling the switch 6 to turn off the barrier lifting alarm function. When the alarm function needs to be restored, operate the control switch 6 again to turn on the circuit.

[0056] In an embodiment of the present application, as shown in Figs. 1-2 The power supply 1 adopts a switching power supply with overvoltage protection and overcurrent protection function to ensure the stability and safety of the device power supply.

[0057] Among them, it can be understood that the normal power supply process: when the entire device is connected to the external power supply system, the power supply 1 starts to work and converts the input voltage into a stable 12V safe voltage, which is supplied to the infrared sensor 2, the relay 3, the delay switch 4, the sound and light alarm 5 and the control switch 6 through the insulated wire, providing basic energy guarantee for the stable operation of the entire device. In the normal working state, each component relies on the stable power provided by the power supply 1 to operate according to the established program. For example, the infrared sensor 2 uses the power provided by the power supply 1 to continuously monitor the lifting state of the barrier machine, and once the barrier machine is detected to be lifted, the signal will be transmitted to the relay 3.

[0058] Overvoltage protection mechanism: In actual use scenarios, there may be abnormal fluctuations in external voltage. When power supply 1 detects that the input voltage exceeds the set overvoltage protection threshold, the overvoltage protection circuit is immediately activated. At this time, power supply 1 will take prompt 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 can break through the electronic elements of these components, causing damage to the device, and thus making the entire alarm device inoperable. The overvoltage protection function is activated to avoid this situation and ensure the safety of the device when the voltage is abnormal, and ensure that the device can still work normally after the voltage returns to normal.

[0059] Overcurrent protection mechanism: Similarly, when a component inside the device has a short circuit or other abnormal situation, causing the current to suddenly increase beyond the overcurrent protection threshold set by power supply 1, the overcurrent protection circuit comes into play. 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 fault occurs inside relay 3, the current increases sharply, and the overcurrent protection function of power supply 1 will act in time to avoid burning out relay 3 and other connected components such as delay switch 4 and sound-light alarm 5, thereby ensuring the stability of the entire device and providing convenience for subsequent troubleshooting and repair.

[0060] In an embodiment of the present application, as shown in Figs. 1-2 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.

[0061] It can be understood that one of the advantages of the pyroelectric infrared sensor is that its sensing sensitivity can be adjusted. This feature is particularly important in different installation environments and usage requirements. For example, in some highway toll lanes with heavy traffic and many environmental disturbances, factors such as changes in external light and frequent blocking by passing vehicles can affect the sensing effect. At this time, we can adjust the sensing sensitivity of infrared sensor 2 to make it more accurately capture the lifting state of the barrier machine.

[0062] The adjustment process is usually completed through the adjustment knob or supporting setting software provided with the infrared sensor 2. The staff will fine-tune the sensing sensitivity according to the actual installation environment and the traffic rules of passing vehicles. When the sensing sensitivity is adjusted to a suitable value, the infrared sensor 2 enters a real-time monitoring state. Once the barrier machine is lifted, the change in infrared emitted by it will be quickly captured by the infrared sensor 2.

[0063] Subsequently, the infrared sensor 2 will be sensed by the barrier machine state signal through the shielded wire transmission to the relay 3. Shielded wire can effectively prevent external electromagnetic interference, ensure the accuracy and stability of signal transmission. After receiving the signal, the relay 3 controls the on-off of the signal state control circuit, and then decides whether the delay switch 4 starts timing. If the barrier machine is normally lifted, the signal transmitted by the infrared sensor 2 will make the relay 3 maintain the normal circuit state; when the barrier machine is lifted for a long time, the signal continuously transmitted by the infrared sensor 2 will trigger the relay 3 to act as the first step for the subsequent alarm process.

[0064] In this way, the pyroelectric infrared sensor 2 with adjustable sensing sensitivity can adapt to various complex installation environments and use requirements, ensure that the barrier alarm device detects the abnormal state of the barrier machine in time and accurately, and ensure the stable operation of the entire traffic management system.

[0065] In an embodiment of the present application, as shown in Figs. 1-2 The relay 3 is an electromagnetic relay, has normally open and normally closed contacts, and realizes on-off control of the delay switch 4 circuit by controlling the opening and closing of the contacts.

[0066] Among them, it can be understood that the relay 3 adopted by the device is an electromagnetic relay, which has normally open and normally closed contacts. The state change of the two contacts determines the on-off state of the delay switch 4 circuit.

[0067] When the entire device is in the initial state or the barrier machine is normally lifted, 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 is transmitted to the 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 work.

[0068] Once the infrared sensor 2 senses the abnormal situation that the barrier machine is lifted for a long time without falling, it will stably transmit the sensed barrier machine state 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 in the relay 3 will generate a magnetic field. Under the action of the magnetic field, the armature of the relay 3 acts, so that the normally closed contact which is originally closed is disconnected, and the normally open contact which is originally disconnected is closed.

[0069] After the normally open contact is closed, the circuit changes, and the power output by the power supply 1 can be 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 timing. When the timing reaches the preset 30 seconds, the signal output end of the delay switch 4 outputs an electrical signal, connects the circuit of the audible and visual alarm 5, and makes it emit loud alarm sound and flashing warning light, reminding the relevant personnel to pay attention to the abnormal barrier machine.

[0070] When the barrier machine normally descends within the preset time, the signal transmitted by the infrared sensor 2 to the electromagnetic relay 3 disappears, the electromagnetic coil inside the electromagnetic relay 3 loses the magnetic field, the armature returns to the original position under the action of the return spring, the normally open contact is disconnected, the normally closed contact is re-closed, the signal input end of the delay switch 4 no longer has signal input, the timing stops, and the sound and light alarm 5 will not be triggered.

[0071] Through the accurate control of the normally open and normally closed contacts of the electromagnetic relay 3, the effective management of the on-off of the delay switch 4 circuit is realized, so that the non-barrier alarm device can accurately and timely respond to the abnormal situation of the barrier machine, and the stable operation of the entire traffic management system is ensured.

[0072] In an embodiment of the present application, as shown in Figs. 1-2 The delay switch 4 adopts a digital time relay, and the delay time can be accurately adjusted within the range of 0 seconds-3 minutes according to actual needs.

[0073] It can be understood that before the device is put into use, the technician will set the delay time of the delay switch 4 according to the actual scene needs. Since it adopts a digital time relay, the delay time can be accurately adjusted within the range of 0 seconds-3 minutes. For example, at a highway toll gate with heavy traffic and frequent lifting of the barrier machine, the delay time can be set to 30 seconds, so that the alarm will not be triggered due to the temporary lifting of the barrier machine, and the abnormal situation can be responded in time. In some parking lot entrances and exits with small traffic, in order to avoid the alarm due to the occasional vehicle staying, the delay time can be appropriately extended to 45 seconds.

[0074] When adjusting the delay time, the knob of the delay switch 4 is adjusted, and when the delay switch 4 receives the signal from the electromagnetic relay 3, it starts timing according to the set delay time. During the timing process, even if the barrier machine is temporarily lifted after descending, as long as the accumulated lifting time does not reach the set delay time, the sound and light alarm 5 will not be triggered. Only when the lifting time of the barrier machine reaches the preset delay time, the signal output end of the delay switch 4 will output an electric signal, connect the circuit of the sound and light alarm 5, and make it emit a loud alarm sound and flashing warning light, reminding the staff to pay attention to the abnormal situation of the barrier machine.

[0075] In an embodiment of the present application, as shown in Figs. 1-2 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, so as to achieve a striking warning effect.

[0076] When the time delay switch 4 receives the signal from the relay 3 and starts timing, the signal output end of the time delay switch 4 outputs an electric signal to the power input end of the sound and light alarm 5 when the lifting time of the barrier machine reaches the preset time delay time (such as 30 seconds), thereby turning on the circuit of the sound and light alarm 5 and making it start working.

[0077] After the sound and light alarm 5 starts working, the alarm volume thereof is maintained between 80-120 decibels. In actual application scenarios such as highway toll lanes and parking lot entrances, this volume range can effectively penetrate the noisy background sound, so that the staff can clearly hear the alarm sound at a certain distance, whether it is the noise of vehicles passing by during the day or the relatively quiet environment at night but still has environmental noise.

[0078] Meanwhile, the warning light of the sound and light alarm 5 flashes at a frequency of 2-5 times per second. This flashing frequency is carefully designed, which will not be too frequent to cause visual fatigue of the human eye, nor will it be too long to be ignored. In the light, the rapidly flashing light can still be more eye-catching in the sunlight during the day; at night, the regularly flashing light can also be clearly seen at a distance, further enhancing the warning effect. Whether in a complex environment with heavy traffic or in a relatively simple parking lot environment, the unique sound and light warning can quickly inform the relevant personnel of the abnormal situation of the barrier machine not being lowered for a long time, so as to take timely measures to handle it and ensure the normal operation of the traffic order.

[0079] In an embodiment of the present application, as shown in Figs. 1-2 The control switch 6 is a 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 in the closed state.

[0080] Among them, it can be understood that when the device is normally running, the control switch 6 is in the always-on state. At this time, the power supply 1 outputs a stable 12V safe voltage, and the current flows from the output end of the power supply 1, passes through the control switch 6, flows to the infrared sensor 2, the relay 3, the time delay switch 4 and the sound and light alarm 5 in the main circuit, and provides power for these components, so that the entire alarm device is in a normal working state and monitors the lifting of the barrier machine at any time.

[0081] When the electromechanical maintenance personnel need to maintain the device, repair, or encounter special circumstances, such as holiday free period, the toll barrier needs to be lifted for a long time without lowering the pole, at this time, the alarm device needs to be closed. The maintenance personnel only need to press the control switch 6, and since it has a self-locking function, the switch will remain closed 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 state of the barrier machine; the relay 3 also cannot receive signals from the infrared sensor 2 due to power failure, and thus cannot control the delay switch 4; the delay switch 4 stops timing after power failure, and the sound and light alarm 5 also does not emit alarm sound and light warning due to no power input.

[0082] When the maintenance work is completed, or the special situation ends, and the normal operation of the alarm device needs to be restored, the electromechanical maintenance personnel press the control switch 6 again, and the switch is unlocked and returns to the normal open state. The current output by the power supply 1 reconnects the entire circuit, and each component resumes power supply. The infrared sensor 2 begins to monitor the lifting state of the barrier machine in real time, the relay 3, the delay switch 4, and the sound and light alarm 5 also return to the normal working state, and the device regains the ability to detect the abnormality of the barrier machine and alarm.

[0083] It should be noted that the control mode of the present application can be automatically controlled by a controller. The control mode of the controller can be realized by simple programming by those skilled in the art, and belongs to the common knowledge in the art. Moreover, the present application mainly protects the mechanical structure, so the control mode and circuit connection will not be explained in detail.

[0084] Specifically, in actual execution, assuming that a toll lane of a highway is installed with the non-lowering pole alarm device:

[0085] In daily work, when a vehicle normally drives into the toll lane, triggering the barrier machine control system, the barrier machine normally lifts up. At this time, the infrared sensor 2 monitors the lifting state of the barrier machine in real time, and stably transmits the signal to the relay 3 through the shielding wire. However, since the vehicle passes normally, the barrier machine will fall down in a short time. Within the preset 30 seconds, the barrier machine completes the lowering action, the infrared sensor 2 detects that the barrier machine falls down, and no longer sends a continuous lifting signal to the relay 3. The normally open contact of the relay 3 remains open, and the normally closed contact remains closed. The delay switch 4 does not receive a signal, and thus does not start timing. The sound and light alarm 5 remains in a silent state, and the entire device maintains a normal standby monitoring process.

[0086] However, one day the barrier machine fails, when a car passes, the barrier machine is lifted, but fails to fall normally. The infrared sensor 2 continuously senses that the barrier machine is in the lifted state, and after a certain time (such as 3 seconds, to ensure that it is not a normal short lifting), the barrier machine state signal is stably transmitted to the relay 3 through the shielding wire. After receiving the signal, the electromagnetic coil in the relay 3 generates a magnetic field, the armature moves, the normally open contact is closed, the normally closed contact is opened, and the power output by the power supply 1 is transmitted to the signal input end of the time delay switch 4 through the circuit where the normally open contact is located. The time delay switch 4 starts timing.

[0087] Assuming that according to the characteristics of the large traffic flow on the highway toll lane and the frequent lifting and falling of the barrier machine, the technical personnel set the time delay of the time delay switch 4 to 30 seconds. During the 30 seconds of timing, even if the barrier machine has a slight shaking, as long as it is not completely lowered, the time delay switch 4 will continue to time. When the timing reaches 30 seconds, the signal output end of the time delay switch 4 outputs an electrical signal, which turns on the circuit of the audible and visual alarm 5. The audible and visual 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 rod for a long time, and timely goes to handle it.

[0088] During the handling process, if the staff needs to temporarily turn off the alarm device for maintenance operation, the control switch 6 can be pressed. Due to the 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 reenters the working state, continues to monitor the lifting and falling of the barrier machine, and ensures the normal order of the highway toll lane.

[0089] In summary, the non-lowering rod alarm device of the embodiment of the present application, the components of the device cooperate, can detect the abnormality of the barrier machine not lowering the rod for a long time in time and alarm, avoid traffic confusion and toll loss, the 12V safety power supply has overvoltage and overcurrent protection, ensures stable and safe power supply, the electromagnetic relay and the digital time relay cooperate, can flexibly control the alarm time, the audible and visual alarm has good warning effect, the self-locking button switch is convenient to operate, improves convenience and safety.

[0090] In the description of the present application, the terms "first", "second" are only for the purpose of description, 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", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0091] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above-described embodiments within the scope of the present application.

Claims

1. A drop-off alarm device characterized by comprising: The device comprises a power supply (1), an infrared sensor (2), a relay (3), a delay switch (4), an audible and light alarm (5) and a control switch (6), wherein, The power supply (1) outputs stable 12V safe voltage, is installed in the railing machine, and is connected with the infrared sensor (2), the relay (3), the delay switch (4), the audible and light alarm (5) and the control switch (6) through insulated wires respectively, so as to provide power for the whole device; The infrared sensor (2) is fixedly installed on the outside of the railing machine, and its sensing area covers the lifting range of the railing machine, so as to sense the lifting state of the railing machine in real time; the signal output end of the infrared sensor (2) is connected with the signal input end of the relay (3) through a shielding wire, so as to stably transmit the sensed railing machine state signal to the relay (3); The relay (3) is installed on the control circuit board in the railing machine, one end of the relay (3) is connected with the signal output end of the infrared sensor (2), and the other end of the relay (3) is connected with the signal input end of the delay switch (4), so as to control the on-off of the circuit according to the signal transmitted by the infrared sensor (2); The delay switch (4) is also installed in the railing machine, and is connected with the signal output end of the relay (3); after receiving the signal transmitted by the relay (3), the delay switch (4) starts timing, and when the lifting time of the railing machine reaches the preset 30 seconds, the signal output end of the delay switch (4) outputs an electric signal to turn on the circuit of the audible and light alarm (5); The audible and light alarm (5) is installed on the railing machine in a conspicuous position, and the power input end of the audible and light alarm (5) is connected with the signal output end of the delay switch (4); when the circuit is turned on, the audible and light alarm (5) emits loud alarm sound and flashing warning light; The control switch (6) is connected in series between the power supply (1) and the whole working circuit, one end of the control switch (6) is connected with the output end of the power supply (1), and the other end of the control switch (6) is connected with the main circuit of the infrared sensor (2), the relay (3), the delay switch (4) and the audible and light alarm (5), so as to control the on-off of the whole device circuit.

2. The drop bar alarm apparatus according to claim 1, wherein The power supply (1) is a switching power supply with overvoltage protection and overcurrent protection functions, so as to ensure the stability and safety of the device power supply.

3. The drop bar alarm apparatus according to claim 1, wherein The infrared sensor (2) is a pyroelectric infrared sensor, and its sensing sensitivity can be adjusted to adapt to different installation environments and use requirements.

4. The drop bar alarm apparatus of claim 1, wherein The relay (3) is an electromagnetic relay, and has normally open and normally closed contacts; the on-off of the contacts is controlled to realize the on-off control of the circuit of the delay switch (4).

5. The drop bar alarm apparatus of claim 1, wherein The delay switch (4) is a digital time relay, and its delay time can be adjusted in the range of 0 seconds-3 minutes according to actual requirements.

6. The drop bar alarm apparatus of claim 1, wherein The alarm volume of the audible and light alarm (5) is between 80-120 decibels, and the flashing frequency of the warning light is 2-5 times per second, so as to achieve a striking warning effect.

7. The drop bar alarm apparatus of claim 1, wherein The control switch (6) is a button switch with self-locking function, which is convenient for electromechanical maintenance personnel to operate, and can effectively cut off the power supply of the device in the off state.

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