Remote control ignition safety controller

Abstract

The utility model discloses a remote control ignition safety controller, and belongs to the technical field of remote control ignition controllers. Comprising a power supply for supplying power to the whole controller, and further comprises a control unit, a single-pole double-throw switch and a two-way selector, and the control unit is connected with a key; the selection end of the single-pole double-throw switch is connected to the control unit; the input end of the single-pole double-throw switch is connected to a second PWM signal generator; the output end of the single-pole double-throw switch is connected with an LED indicating lamp and a wireless transceiver. The selection end of the two-way selector is connected to the control unit; the input end of the two-way selector is connected to the output end of the first PWM signal generator and the output end of the wireless transceiver. The output end of the two-way selector is connected to the PWM adjustable constant current source; the PWM adjustable constant current source is connected to the electronic match through the relay switch module; the utility model provides a remote control ignition safety controller which can ensure stable ignition of an electronic match and is high in ignition safety performance.

Description

Technical Field

[0001] The utility model specifically relates to a remote control ignition safety controller, belonging to the technical field of remote control ignition controllers. Background Art

[0002] The remote control ignition controller is mainly used for remote ignition of electronic matches. The existing remote control ignition controller is used in various ignition occasions, such as fireworks igniters and artillery igniters. The wireless transceiver receives the remote control ignition signal and sends the ignition signal to the electronic match, which performs the ignition operation. The existing remote control ignition controller has the following disadvantages:

[0003] 1. It is impossible to ensure the consistency of the current applied to different types of electronic matches, which may easily cause ignition failure;

[0004] 2. The ignition safety is not high enough. If there are moving targets around the electronic match, if you continue to ignite remotely, it may be dangerous;

[0005] 3. There is no feedback on whether the ignition is successful, so it is impossible to judge whether the ignition is successful. Utility Model Content

[0006] In order to solve the above problems, the utility model proposes a remote control ignition safety controller, which can ensure stable ignition of electronic matches and has high ignition safety performance.

[0007] The remote control ignition safety controller of the utility model comprises a power supply for supplying power to the entire controller, and also comprises

[0008] A control unit, wherein the control unit is connected to a button;

[0009] A single-pole double-throw switch, wherein the single-pole double-throw switch selection end is connected to the control unit; the single-pole double-throw switch input end is connected to the second PWM signal generator; the single-pole double-throw switch output end is connected to an LED indicator light and a wireless transceiver;

[0010] A two-way selector, wherein the selection end of the two-way selector is connected to a control unit; the input end of the two-way selector is connected to a first PWM signal generator and an output end of a wireless transceiver; the output end of the two-way selector is connected to a PWM adjustable constant current source; the PWM adjustable constant current source is connected to an electronic match through a relay switch module; a sampling resistor is connected in series between the electronic match and the relay switch module, the sampling resistor is connected to a voltage comparator through a current detection amplifier, and the output end of the voltage comparator is connected to a second PWM signal generator; the control end of the relay switch module is connected to a control unit; and the control unit is connected to a moving target detector.

[0011] When the key is pressed, the control unit detects the key signal. At this time, the control unit selects the first PWM signal generator as the PWM wave input signal of the PWM adjustable constant current source through the dual-way selector. At the same time, the control unit gives the single-pole double-throw switch signal and chooses to switch to the LED indicator. At this time, the first PWM signal generator generates a low-duty PWM signal to the PWM adjustable constant current source for detecting whether the line is open. The low-duty PWM signal enters the PWM adjustable constant current source through the dual-way selector. At this time, the PWM adjustable constant current source outputs a low current signal according to the input PWM signal duty cycle. The low current signal is lower than the ignition current of the electronic match, and the electronic match does not work. At the same time, the voltage generated at both ends of the sampling resistor is amplified by the current detection amplifier and sent to the voltage comparator. The output of the voltage comparator enables the second PWM signal generator and is sent to the LED indicator after passing through the single-pole double-throw switch; the LED lamp is lit, and the line is in a smooth state. Then, when the key is released, the control unit determines the key release signal (level conversion), and the control unit sends the second PWM signal to the LED indicator through the dual-way selector. The selector selects the PWM signal output by the wireless transceiver (the PWM signal sent from the remote end) as the PWM wave input signal of the PWM adjustable constant current source. At the same time, the control unit sends a single-pole double-throw switch signal to connect the output end of the PWM signal generator with the input port of the wireless transceiver. At this time, the dual-way selector receives the PWM signal sent by the wireless transceiver and sends it to the PWM adjustable constant current source to apply an ignition current to the electronic match; and the relay switch module and the mobile target detector cooperate to realize on-site environmental monitoring. When any mobile target detector sends a moving signal (obstacle signal), the mobile target detector sends a signal to the control unit, and the control unit controls the relay switch module to cut off the ignition current loop; when the electronic match has current flowing through, the voltage generated at both ends of the sampling resistor is amplified by the current detection amplifier and sent to the voltage comparator. The output of the voltage comparator enables the second PWM signal generator, which is sent to the input port of the wireless transceiver after passing through the single-pole double-throw switch, and is used to feedback the ignition state to the remote wireless transceiver.

[0012] Furthermore, the moving target detector is a millimeter wave radar, a surveillance camera or an infrared sensor.

[0013] Furthermore, a plurality of the mobile target detectors are provided, and the monitoring angles of adjacent mobile target detectors intersect with each other to form a 360° monitoring surface, so that there is no blind spot in monitoring and the safety is high.

[0014] Furthermore, the relay switch module is composed of a plurality of relays connected in series, the number of the relays is the same as the number of the moving target detectors and corresponds one to one; any plurality of moving target detectors linked to the relays are connected in series to the ignition current output circuit to form 360° monitoring without blind spots. When any one of the moving target detectors detects a moving target, the relay will be cut off, thereby cutting off the ignition current circuit to ensure safety.

[0015] Compared with the prior art, the remote control ignition safety controller of the utility model has the following advantages:

[0016] 1. Using PWM adjustable constant current source as the ignition current source can realize arbitrary switching between small current path detection and large current ignition, and can ensure the consistency of current applied to different types of electronic matches, without being affected by changes in internal resistance and wiring loops of different lengths;

[0017] 2. A relay switch module is connected in series to the ignition current output circuit, and the relay switch module is linked with the moving target detector to ensure safety around the ignition.

[0018] 3. The current on the ignition current output circuit is detected and amplified using a sampling resistor and a current detection amplifier, so that the state of the ignition circuit can be obtained in real time, thereby providing feedback to the remote control device on whether the ignition is successful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of Example 2 of the present utility model. DETAILED DESCRIPTION

[0021] Embodiment 1:

[0022] like Figure 1 The remote control ignition safety controller shown includes a power supply for supplying power to the entire controller, and also includes

[0023] A control unit, wherein the control unit is connected to a button;

[0024] A single-pole double-throw switch, wherein the single-pole double-throw switch selection end is connected to the control unit; the single-pole double-throw switch input end is connected to the second PWM signal generator; the single-pole double-throw switch output end is connected to an LED indicator light and a wireless transceiver;

[0025] A two-way selector, wherein the selection end of the two-way selector is connected to a control unit; the input end of the two-way selector is connected to a first PWM signal generator and an output end of a wireless transceiver; the output end of the two-way selector is connected to a PWM adjustable constant current source; the PWM adjustable constant current source is connected to an electronic match through a relay switch module; a sampling resistor is connected in series between the electronic match and the relay switch module, the sampling resistor is connected to a voltage comparator through a current detection amplifier, and the output end of the voltage comparator is connected to a second PWM signal generator; the control end of the relay switch module is connected to a control unit; and the control unit is connected to a moving target detector.

[0026] When the key is pressed, the control unit detects the key signal. At this time, the control unit selects the first PWM signal generator as the PWM wave input signal of the PWM adjustable constant current source through the dual-way selector. At the same time, the control unit gives the single-pole double-throw switch signal and chooses to switch to the LED indicator. At this time, the first PWM signal generator generates a low-duty PWM signal to the PWM adjustable constant current source for detecting whether the line is open. The low-duty PWM signal enters the PWM adjustable constant current source through the dual-way selector. At this time, the PWM adjustable constant current source outputs a low current signal according to the input PWM signal duty cycle. The low current signal is lower than the ignition current of the electronic match, and the electronic match does not work. At the same time, the voltage generated at both ends of the sampling resistor is amplified by the current detection amplifier and sent to the voltage comparator. The output of the voltage comparator enables the second PWM signal generator and is sent to the LED indicator after passing through the single-pole double-throw switch; the LED lamp is lit, and the line is in a smooth state. Then, when the key is released, the control unit determines the key release signal (level conversion), and the control unit sends the second PWM signal to the LED indicator through the dual-way selector. The selector selects the PWM signal output by the wireless transceiver (the PWM signal sent from the remote end) as the PWM wave input signal of the PWM adjustable constant current source. At the same time, the control unit sends a single-pole double-throw switch signal to connect the output end of the PWM signal generator with the input port of the wireless transceiver. At this time, the dual-way selector receives the PWM signal sent by the wireless transceiver and sends it to the PWM adjustable constant current source to apply an ignition current to the electronic match; and the relay switch module and the mobile target detector cooperate to realize on-site environmental monitoring. When any mobile target detector sends a moving signal (obstacle signal), the mobile target detector sends a signal to the control unit, and the control unit controls the relay switch module to cut off the ignition current loop; when the electronic match has current flowing through, the voltage generated at both ends of the sampling resistor is amplified by the current detection amplifier and sent to the voltage comparator. The output of the voltage comparator enables the second PWM signal generator, which is sent to the input port of the wireless transceiver after passing through the single-pole double-throw switch, and is used to feedback the ignition state to the remote wireless transceiver.

[0027] The moving target detector is a millimeter wave radar, a surveillance camera or an infrared sensor.

[0028] There are multiple moving target detectors, and the monitoring angles of adjacent moving target detectors intersect with each other to form a 360° monitoring surface, so there is no blind spot in monitoring and high safety.

[0029] Embodiment 2:

[0030] like Figure 2 The remote control ignition safety control shown in the figure, the relay switch module is composed of a plurality of relays connected in series, the number of the relays is the same as the number of the moving target detectors and corresponds one to one; any plurality of moving target detectors linked with the relays are connected in series to the ignition current output circuit, so as to form 360° monitoring without blind spots. When any one of the moving target detectors detects a moving target, the relay will be cut off, thereby cutting off the ignition current circuit and ensuring safety.

[0031] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A remote control ignition safety controller, including a power supply for supplying power to the entire controller, characterized in that: Also includes A control unit, wherein the control unit is connected to a button; A single-pole double-throw switch, wherein the single-pole double-throw switch selection end is connected to the control unit; the single-pole double-throw switch input end is connected to the second PWM signal generator; the single-pole double-throw switch output end is connected to an LED indicator light and a wireless transceiver; A two-way selector, wherein the selection end of the two-way selector is connected to the control unit; the input end of the two-way selector is connected to the first PWM signal generator and the output end of the wireless transceiver; the output end of the two-way selector is connected to the PWM adjustable constant current source; The PWM adjustable constant current source is connected to the electronic match through the relay switch module; a sampling resistor is connected in series between the electronic match and the relay switch module, the sampling resistor is connected to the voltage comparator through the current detection amplifier, and the output end of the voltage comparator is connected to the second PWM signal generator; the control end of the relay switch module is connected to the control unit; the control unit is connected to a moving target detector.

2. The remote control ignition safety controller according to claim 1, characterized in that: The moving target detector is a millimeter wave radar, a surveillance camera or an infrared sensor.

3. The remote control ignition safety controller according to claim 1, characterized in that: A plurality of the moving target detectors are provided, and the monitoring angles of adjacent moving target detectors intersect with each other to form a 360° monitoring surface.

4. The remote control ignition safety controller according to claim 1, characterized in that: The relay switch module is composed of a plurality of relays connected in series, and the number of the relays is the same as the number of the moving target detectors and corresponds one to one.

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