Two-way programmable time sequence electric firing controller
By designing a dual-channel programmable timing electric firing controller, the problems of low timing accuracy, insufficient safety, and poor integration in existing technologies are solved. It achieves high-precision delay control, multiple safety protections, and portability, and is suitable for weapon system testing, aerospace engine ignition, blasting engineering, and scientific research experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing electric firing controllers suffer from low timing accuracy, insufficient safety, unknowable status, and poor integration in weapon system testing, aerospace engine ignition, blasting engineering, and scientific research experiments, making it difficult to achieve high-precision delay control, multiple safety protections, and portability.
A dual-channel programmable timing electric firing controller was designed, comprising a power supply module, a timing control module, a firing output module, a safety protection module, and a status monitoring and indication module. It integrates a rechargeable lithium battery, a programmable digital timer, a mechanical changeover switch, a key-operated rotary switch, and various status indicator lights to achieve high-precision timing control, multiple safety protections, and real-time status monitoring.
It achieves precise programmable delay control in 1ms increments, provides multiple safety protections, and integrates multi-dimensional status indicators such as path connection status, real-time timing difference, and battery level, forming a portable, integrated operating platform suitable for various environments.
Smart Images
Figure CN121829237A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of electric primer firing control, and particularly relates to a two-path programmable time sequence electric firing controller for precisely controlling devices such as electric bottom fire and electric ignition head. BACKGROUND
[0002] In weapon system testing, space engine ignition, blasting engineering and scientific research experiments, it is often necessary to precisely control the firing time sequence of multiple electric primers. Traditional firing controllers mostly adopt single-path control or simple synchronous control, and have the following defects: low time sequence precision: it is difficult to realize millisecond-level high-precision delay control, and the demand of precise experiments cannot be met; insufficient safety: there is a lack of multiple hardware safety protection mechanisms, and there is a risk of accidental triggering during wiring and debugging; state-agnostic: the connection state of the firing path, the power supply capacity and the actual firing time sequence cannot be monitored in real time, and the operation is highly blind; poor integration: the system is heavy, inconvenient to carry and complicated to arrange on site.
[0003] Therefore, there is an urgent need for an electric firing control device integrating high-precision time sequence control, multiple safety mechanisms, real-time state monitoring and portability. SUMMARY
[0004] To solve the above-mentioned existing problems, the application provides a two-path programmable time sequence electric firing controller which is high in safety, high in time sequence precision, high in integration and convenient to use on site.
[0005] The technical scheme adopted by the application is as follows: the two-path programmable time sequence electric firing controller comprises a power module, a time sequence control module, a firing output module, a safety mechanism module and a state monitoring and indication module.
[0006] The power module is used to provide electric energy for firing, and is composed of a plurality of rechargeable lithium batteries connected in series. According to the actual firing voltage demand, a plurality of rechargeable lithium batteries are connected in series to support a current output of not less than 6A continuously and not less than 16A instantaneously, and a special charging interface and a corresponding charging management circuit are integrated to have a low-voltage protection function.
[0007] The time sequence control module comprises a time sequence setting unit and a firing mode selection unit. The time sequence setting unit is a programmable digital timer, and the delay setting range is 1ms to 9999ms with a step of 1ms. The time sequence setting unit is operated through a four-digit digital display, a button for switching the setting digit and a button for adjusting the value and serving as a reset function. The firing mode selection unit is a mechanical switch, and the mechanical switch has two gears of synchronization and time sequence, and is associated with different color indicator lights for state indication. Different modes correspond to different color indicator lights.
[0008] The firing output module includes two electrically and physically independent firing paths, controlled by a timing control module. The firing output module uses a 4mm standard banana socket as the output terminal and integrates a path status indication circuit, which is connected to the path status indication unit in the status monitoring and indication module. This is used to reflect the external load connection status in real time through the brightness of the indicator light.
[0009] The safety protection module is used to control the on / off switching of the firing power supply. The safety protection module is a key-operated two-position rotary switch with two positions: protection and firing. In the protection position, the internal terminals of each path of the firing output module are short-circuited to the negative terminal of the power supply module. In the firing position, the ring indicator light on the key-operated rotary switch lights up, indicating that the system has entered the firing standby state and the key can be removed in any position. Logically, this module is connected in series in the main power supply circuit of the power supply module and the firing output module, serving as the main switch for firing power output.
[0010] The status monitoring and indication module includes a timing monitoring unit, a path status indication unit, and a lithium battery power monitoring unit. The timing monitoring unit monitors and displays the actual time difference between the two firing paths. It includes a four-digit digital meter and BNC signal output interfaces for both firing paths, outputting the time difference signal as a 5V pulse to an external oscilloscope or data acquisition system. The path status indication unit indicates the connection status of each firing path, emitting a bright green light when the connection is good and dimming noticeably when the connection is poor. The lithium battery power monitoring unit indicates the current battery level, accurately displaying the current battery voltage digitally and showing the percentage of charge via the number of illuminated LED bars. A short press of the button switches between displaying the voltage value and the percentage of charge, while a long press turns the display off.
[0011] Preferably, all modules are integrated into a portable protective case with a width of 278mm, a height of 118mm, and a depth of 199mm.
[0012] The beneficial effects achieved by the present invention using the above structure are as follows:
[0013] 1. High-precision timing control: It achieves precise programmable delay in 1ms increments, meeting the requirements for high-precision synchronization and timing firing;
[0014] 2. Multiple safety protections: Through multiple hardware measures such as key safety lock, output short circuit protection, and reset indicator interlock, the operation safety is greatly improved;
[0015] 3. Comprehensive status monitoring: It integrates multi-dimensional status indicators such as path connection status, real-time timing difference, and battery level, making the system's working status clear at a glance;
[0016] 4. High integration and portability: All functional modules are integrated into a compact protective case, forming an independent and portable integrated operating platform suitable for various field and laboratory environments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the circuit connection for the dual-channel programmable timing electric trigger controller proposed in this solution. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0019] like Figure 1 As shown, the dual-channel programmable timing electric firing controller proposed in this solution integrates all its functional modules into a portable protective case, forming a complete integrated device.
[0020] The power module, serving as the system's energy source, is composed of multiple rechargeable lithium batteries connected in series, based on the actual firing voltage requirements. When the power module consists of four 3500mAh 18650 lithium batteries connected in series, its nominal voltage is 14.8V, and its fully charged voltage is 16.8V. The module features overcurrent and over-discharge protection and can provide a continuous 6A and instantaneous 16A high-current output to meet the power requirements of electric primer firing. A charging port is provided on the panel for charging via an external charger.
[0021] The timing control module includes a timing setting unit and a firing mode selection unit. The timing setting unit is a four-digit decimal digital timer. Each digit is selected sequentially using the mode button on the panel, and the value is cycled from 0 to 9 using the plus button on the panel, thus precisely setting the delay time in 1ms increments within the range of 1ms to 9999ms. The firing mode selection unit uses a mechanical rotary switch to switch between synchronous and timing modes. When the switch is turned to the synchronous mode, the associated red LED lights up; when the switch is turned to the timing mode, the associated green LED lights up.
[0022] The firing output module provides two completely independent firing channels; each channel is connected to an external load via a pair of 4mm banana plugs; the firing path status indication circuit integrated inside the module is connected to the path status indication unit in the status monitoring module; when the external line connection is good and the loop resistance is low, the corresponding green indicator light is bright; when the connection is poor and the loop resistance is high, the indicator light dims significantly, thus providing operators with intuitive connection status diagnosis.
[0023] The safety switch module is the master switch for the entire system, operated by a rotary switch with a dedicated key. This switch has two positions: protection and firing. In the protection position, the system internally short-circuits both firing outputs to the negative terminal of the power supply, ensuring that there is no voltage output even if the firing button is accidentally pressed, thus ensuring absolute safety. The key can be removed from any position for easy access by administrators to lock the system status. When the switch is turned to the firing position, the ring indicator light around the knob illuminates, warning that the system has entered the firing standby state.
[0024] The status monitoring and indication module provides comprehensive system feedback; its timing monitoring unit uses a four-digit digital meter, which can display and lock the actual time difference between the first and second firing channels in real time in timing firing mode, with an accuracy of milliseconds; at the same time, this unit also provides two BNC interfaces to output a TTL pulse signal with an amplitude of about 5V to an oscilloscope for accurate recording and analysis of firing timing; the lithium battery power monitoring unit has a dedicated display meter, which displays the real-time voltage and power percentage of the battery pack in cycles when its function key is shorted, and turns off the display when it is long pressed.
[0025] In practical use, before the experiment, place the safety lock module in the protected position and remove the key; connect the two electric primer circuits and observe whether the firing path indicator light is bright green; set the required delay through the timing setting unit and select the firing mode (such as synchronous or sequential); insert the key and turn the safety lock to the firing position, at which point the ring light will illuminate; after confirming that everything is correct, press the firing control button; if the firing mode is synchronous, both circuits will fire simultaneously immediately; if the firing mode is sequential, the first circuit will fire immediately, the timing setting meter will start counting down, and the second circuit will fire after the timer resets to zero; the timing monitoring meter will display the actual time difference between the two firings.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dual-channel programmable timing electric firing controller, comprising a power supply module, a timing control module, a firing output module, a safety and security module, and a status monitoring and indication module, characterized in that: The power module is used to provide electrical energy for firing; The timing control module includes a timing setting unit and a firing mode selection unit; The firing output module includes two independent firing paths, which are controlled by the timing control module; The safety protection module is used to control the on / off switching of the firing power; The status monitoring and indication module includes a timing monitoring unit, a path status indication unit, and a lithium battery power monitoring unit. The timing monitoring unit is used to monitor and display the actual time difference between the two firing paths, the path status indication unit is used to indicate the connection status of each firing path, and the lithium battery power monitoring unit is used to indicate the current power of the lithium battery.
2. The dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The power module consists of several rechargeable lithium batteries connected in series. The power module integrates a dedicated charging interface and a corresponding charging management circuit, and has a low-voltage protection function.
3. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The timing setting unit is a programmable digital timer with a delay setting range of 1ms to 9999ms and a step size of 1ms. The timing setting unit also includes a four-digit display, a button for switching the setting digits, and a button for adjusting the value and also serving as a reset function.
4. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The firing mode selection unit is a mechanical switch with two positions: synchronous and sequential. The firing mode selection unit is associated with a mode status indicator. When the mechanical switch is in synchronous mode, the first color indicator light is lit, and the sequential control module controls the two firing paths to output firing voltage signals simultaneously. When the mechanical switch is in sequential mode, the second color indicator light is lit, and the sequential control module controls firing path 1 to immediately output firing voltage signals. After the delay time set by the sequential setting unit is reached, the module controls firing path 2 to output firing voltage signals.
5. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The firing output module also integrates a firing path status indicator circuit, which is connected to the path status indicator unit in the status monitoring and indicator module. It is used to reflect the connection status of the external load in real time through the brightness of the indicator light.
6. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The safety protection module is a key-operated rotary switch with two positions: protection and firing. When in the protection position, the safety protection module short-circuits the internal output terminals of each path of the firing output module to the negative terminal of the power supply module. When switched to the firing position, the ring indicator light on the key-operated rotary switch illuminates. The safety protection module is logically connected in series in the main power supply circuit between the power supply module and the firing output module.
7. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The timing monitoring unit includes a four-digit digital meter for displaying the actual time difference between the output signals of firing path 1 and firing path 2 in real time in milliseconds; the timing monitoring unit also includes BNC signal output interfaces for firing path 1 and firing path 2, for outputting the time difference signal as a pulse with an amplitude of 5V to an external oscilloscope or data acquisition system.
8. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The circuit status indicator unit qualitatively indicates the connection resistance status of the external circuit of the corresponding firing circuit by the brightness of the indicator light. The indicator light emits a bright green light when the connection is good and dims significantly when the connection is poor.
9. A dual-channel programmable timing electric trigger controller according to claim 1, characterized in that: The lithium battery power monitoring unit can accurately display the current voltage value of the battery pack in digital form, and display the percentage of power through the number of lit LED bars; the power monitoring unit supports switching between displaying voltage value and power percentage by short-pressing the button, and turning off the display by long-pressing the button.
10. The dual-channel programmable timing electric trigger controller according to any one of claims 1 to 9, characterized in that: All modules are integrated into a portable protective case.