CN111006557B - Handheld fire testing terminal - Google Patents
Handheld fire testing terminal Download PDFInfo
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- CN111006557B CN111006557B CN201911183418.XA CN201911183418A CN111006557B CN 111006557 B CN111006557 B CN 111006557B CN 201911183418 A CN201911183418 A CN 201911183418A CN 111006557 B CN111006557 B CN 111006557B
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- circuit
- power supply
- board computer
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- explosive device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
- F42B35/02—Gauging, sorting, trimming or shortening cartridges or missiles
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- General Engineering & Computer Science (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a hand-held type firer test terminal, comprising: the device comprises a case, a power supply part, a display part and a control part; the display part is arranged on the upper layer of the case, the power supply part and the control part are fixed in the case, the display part is connected with the control part, and the power supply part is respectively connected with the display part and the control part; the control part comprises an ARM single-board computer and a carrier board, and the ARM single-board computer is in communication connection with the carrier board; the carrier plate is provided with a power supply management circuit, an initiating explosive device testing circuit and an external interface circuit, the power supply management circuit provides power supply and reset signals for the system, the initiating explosive device testing circuit detects the state of the initiating explosive device through a testing interface, and the external interface circuit is used for setting different external interfaces. By the technical scheme, the minimization and modularization of the hardware core part of the terminal are realized, the operation is simple, the interface functions are various, and the function of being compatible with various initiating explosive device testing equipment is realized.
Description
Technical Field
The invention relates to the technical field of testing devices, in particular to a handheld fire testing terminal.
Background
In modern war, the missile has become one of the most main striking means, and the missile firer system plays a great role in many systems of the missile, and the safety and reliability of the missile firer system directly determine whether the missile can complete a predetermined combat target. Therefore, in the process of developing a missile weapon system, a testing device of an initiating explosive device system is always the key of development.
The traditional fire testing device adopts a universal meter or a special testing device which takes an embedded microprocessor as a control core, and does not have the data management function. In addition, the traditional fire testing device is operated by adopting mechanical keys, and a small-size black-and-white display is used as a display part, so that the man-machine experience is poor.
The firer testing arrangement is bulky in the past, and does not possess the universalization test function, and the firer testing arrangement model that leads to the army assembly is many, and the state is miscellaneous, is unfavorable for improving the logistics support level of army.
Disclosure of Invention
Aiming at least one of the problems, the invention provides a handheld initiating explosive device testing terminal, wherein a control part comprises an ARM single-board computer and a support plate, the support plate completes the acquisition of initiating explosive device state data and analog-to-digital conversion under the control of the ARM single-board computer, and transmits the conversion result to the ARM single-board computer so as to realize the display, judgment and management of data, a display part can directly display detection data, the operation is simple, the interface function is various, the handheld initiating explosive device testing terminal has the function of being compatible with various initiating explosive device testing equipment, and the minimization and modularization of a hardware core part of the terminal are realized.
In order to achieve the above object, the present invention provides a handheld firer testing terminal, comprising: the device comprises a case, a power supply part, a display part and a control part; the display part is arranged on the upper layer of the case, the power supply part and the control part are fixed in the case, the display part is connected with the control part, and the power supply part is respectively connected with the display part and the control part; the control part comprises an ARM single-board computer and a carrier board, and the ARM single-board computer is in communication connection with the carrier board; the testing device comprises a support plate, and is characterized in that a power management circuit, an initiating explosive device testing circuit and an external interface circuit are arranged on the support plate, the power management circuit provides power and reset signals for a system, the initiating explosive device testing circuit detects the state of the initiating explosive device through a testing interface, and the external interface circuit is used for setting different external interfaces.
In the above technical solution, preferably, the initiating explosive device testing circuit includes a constant current source, a multi-way analog switch, an instrument amplifier, a high-precision differential amplifier, a high-precision AD converter, and the testing interface, the multi-way analog switch completes switching of the testing interface under the control of the signal of the ARM single board computer, loads the signal of the constant current source on the initiating explosive device to be tested through the testing interface, sends a detection sampling signal to the AD converter after being conditioned and amplified by the instrument amplifier and the high-precision differential amplifier, and the AD converter completes analog-to-digital conversion and then transmits the detection sampling signal to the ARM single board computer.
In the above technical solution, preferably, the power management circuit includes a voltage regulator and a power monitoring circuit, the voltage regulator provides 5V and 3.3V voltages required by system operation, and the power monitoring circuit is configured to monitor an operating voltage of the power supply unit and provide a system reset signal.
In the above technical solution, preferably, the power supply unit is packaged by using a 6-pack 18650 lithium battery and a protection board.
In the foregoing technical solution, preferably, the peripheral interface circuit includes a LAN interface, a USB interface, and an SD card interface.
In the foregoing technical solution, preferably, the ARM single-board computer is connected to the display component through an RGB interface.
In the foregoing technical solution, preferably, the ARM single-board computer is in communication connection with the carrier board through an SPI bus.
In the above technical solution, preferably, an isolation circuit is provided between the initiating explosive device testing circuit and the ARM single-board computer.
In the above technical solution, preferably, the chassis adopts a stacked structure, the display component is disposed on an upper layer of the chassis, the control component and the power component are disposed on a lower layer of the chassis, and the peripheral interface is protected by a metal cover plate.
In the above technical solution, preferably, the display unit is a touch display screen.
Compared with the prior art, the invention has the following beneficial effects: the control component is composed of an ARM single-board computer and a carrier plate, the carrier plate completes collection and analog-to-digital conversion of initiating explosive device state data under the control of the ARM single-board computer, and transmits a conversion result to the ARM single-board computer to achieve display, judgment and management of data, the display component can directly display detection data, the operation is simple, the interface functions are various, the function of being compatible with various initiating explosive device testing devices is achieved, and minimization and modularization of a terminal hardware core part are achieved.
Drawings
Fig. 1 is a schematic diagram of an explosion structure at the rear side of a handheld firer test terminal according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an explosion structure at the front side of a handheld firer test terminal according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a handheld firer test terminal according to an embodiment of the present invention.
In the drawings, the correspondence between each component and a reference numeral is:
1. the device comprises a case, 2, a power supply part, 3, a display part, 4, a control part, 41, an ARM single-board computer, 42, a carrier plate, 421, a power supply management circuit, 422, an initiating explosive device testing circuit, 423 and an external interface circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention is described in further detail below with reference to the following drawings:
as shown in fig. 1 and 2, a handheld firer test terminal provided in accordance with the present invention includes: the device comprises a case 1, a power supply part 2, a display part 3 and a control part 4; the display component 3 is arranged on the upper layer of the case 1, the power supply component 2 and the control component 4 are fixed in the case 1, the display component 3 is connected with the control component 4, and the power supply component 2 is respectively connected with the display component 3 and the control component 4; the control part 4 comprises an ARM single-board computer 41 and a carrier board 42, and the ARM single-board computer 41 and the carrier board 42 are in communication connection; the carrier plate 42 is provided with a power management circuit 421, an initiating explosive device testing circuit 422 and a peripheral interface circuit 423, the power management circuit 421 provides power and reset signals for the system, the initiating explosive device testing circuit 422 detects the state of the initiating explosive device through a testing interface, and the peripheral interface circuit 423 is used for setting different peripheral interfaces.
As shown in fig. 3, in this embodiment, the control component 4 is composed of an ARM single board computer 41 and a carrier board 42, the carrier board 42 completes collection and analog-to-digital conversion of the status data of the initiating explosive device under the control of the ARM single board computer 41, and transmits the conversion result to the ARM single board computer 41 to realize display, judgment and management of data, the display component 3 can directly display detection data, and is simple in operation, various in interface function, and has a function of being compatible with various initiating explosive device testing apparatuses, thereby realizing minimization and modularization of a terminal hardware core part.
Specifically, the ARM single board computer 41 has the characteristics of small volume (74mm × 54mm), abundant onboard resources, complete interfaces, high reliability, wide temperature range (-40 ℃ to +80 ℃) and the like, and mainly runs an operating system and terminal control software to realize data display, judgment and management. The power management circuit 421, the initiating explosive device testing circuit 422 and the peripheral function interface circuit integrated with the carrier plate 42 complete data acquisition and analog-to-digital conversion under the control of the ARM single board computer 41, and transmit the conversion result to the ARM single board computer 41 through the serial bus. The modern general computer technology is fused with the modern testing technology, the minimization and modularization of the hardware core part of the terminal are realized by defining the functions of the terminal through software, and the functions of other fire testing equipment can be compatible by matching with corresponding testing software and accessories.
In the above embodiment, preferably, the initiating explosive device testing circuit 422 includes a constant current source, a multi-channel analog switch, an instrumentation amplifier, a high-precision differential amplifier, a high-precision AD converter, and a testing interface, where the multi-channel analog switch completes switching of the testing interface under the control of the signal of the ARM single-board computer 41, loads the signal of the constant current source on the initiating explosive device to be tested through the testing interface, conditions and amplifies the detection sampling signal through the instrumentation amplifier and the high-precision differential amplifier, and then sends the detection sampling signal to the AD converter, and the AD converter completes analog-to-digital conversion and then transmits the detection sampling signal to the ARM single-board computer 41.
Specifically, the initiating explosive device test circuit 422 is composed of circuits such as a multi-path analog switch ADG1633, an instrumentation amplifier LTC2053, a high-precision differential amplifier AD8476, a high-precision AD converter AD7790 and the like, the multi-path analog switch ADG1633 completes the switching of a test channel under the control of a GPIO signal of the ARM single-board computer 41, loads a constant current source signal to the tested initiating explosive device, the generated sampling signal is conditioned and amplified and then sent to the AD converter, and the AD converter completes the analog-to-digital conversion and then transmits the conversion data to the ARM single-board computer 41 through an SPI bus.
In the above embodiment, preferably, the power management circuit 421 includes voltage regulators NCP59301, LT1963A and a power monitoring circuit MAX708 and related peripheral circuits, the voltage regulators NCP59301 and LT1963A provide voltages of 5V and 3.3V required for system operation, and the power monitoring circuit MAX708 is configured to monitor an operating voltage of the power supply unit 2 and provide a system reset signal.
In the above embodiment, the power supply part 2 is preferably packaged by 6-section 18650 lithium batteries (2 in series and 3 in parallel) and a protection board, and has small volume, large capacity and high reliability.
In the above embodiment, the peripheral interface circuit 423 preferably includes a LAN interface, a USB interface, and an SD card interface, and other extended peripheral interfaces.
In the above embodiment, the ARM single board computer 41 is preferably connected to the display unit 3 through an RGB interface.
In the above embodiment, preferably, the ARM single-board computer 41 and the carrier board 42 are connected through an SPI bus in a communication manner.
In the above embodiment, preferably, an isolation circuit is disposed between the initiating explosive device testing circuit 422 and the ARM single board computer 41 to avoid signal disturbance.
In the above embodiment, preferably, the chassis 1 is of a stacked structure, the display part 3 is disposed on the upper layer of the chassis 1, the control part 4 and the power supply part 2 are disposed on the lower layer of the chassis 1, all the peripherals are directly mounted on the circuit board, and the peripheral interfaces are protected by the metal cover plate. Compared with the traditional initiating explosive device resistance value testing equipment, the terminal of the embodiment has the advantages of smaller overall dimension, lighter weight and better ergonomic design.
In the above embodiment, preferably, the display part 3 is a touch display screen, preferably a capacitive touch display, and has simple operation and sensitive response.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A hand-held type firer test terminal which characterized in that includes: the device comprises a case, a power supply part, a display part and a control part;
the case adopts a laminated structure, the display component is arranged on the upper layer of the case, the power supply component and the control component are fixed on the lower layer of the case, the display component is connected with the control component, the power supply component is respectively connected with the display component and the control component, and an external interface is protected by a metal cover plate;
the power supply part is formed by packaging 6 sections of 18650 lithium batteries and a protective plate, and the display part adopts a touch display screen;
the control part comprises an ARM single-board computer and a carrier board, and the ARM single-board computer is in communication connection with the carrier board;
the carrier plate completes the collection and analog-to-digital conversion of the initiating explosive device state data under the control of the ARM single-board computer, and transmits the conversion result to the ARM single-board computer, and the ARM single-board computer runs an operating system and terminal control software to realize the display, judgment and management of data;
the system comprises a support plate, a power supply management circuit, an initiating explosive device testing circuit and an external interface circuit, wherein the support plate is provided with the power supply management circuit, the initiating explosive device testing circuit and the external interface circuit, the power supply management circuit provides power supply and reset signals for the system, the initiating explosive device testing circuit detects the state of an initiating explosive device through a testing interface, the external interface circuit is used for setting different external interfaces, the minimization and modularization of a terminal hardware core part are realized, and the functions of other initiating explosive device testing equipment are compatible by matching with corresponding testing software and accessories;
The power management circuit comprises a voltage stabilizer and a power monitoring circuit, wherein the voltage stabilizer provides 5V and 3.3V voltages required by the system to work, and the power monitoring circuit is used for monitoring the working voltage of a power supply part and providing a system reset signal;
the initiating explosive device test circuit comprises a constant current source, a multi-path analog switch, an instrument amplifier, a high-precision differential amplifier, a high-precision AD converter and the test interface,
the multi-path analog switch completes the switching of the test interface under the signal control of the ARM single-board computer, loads the signal of the constant current source on the tested initiating explosive device through the test interface, sends a detection sampling signal to the AD converter after conditioning and amplifying through the instrument amplifier and the high-precision differential amplifier, and transmits the detection sampling signal to the ARM single-board computer after completing the analog-to-digital conversion.
2. The hand-held pyrotechnic test terminal of claim 1 wherein the peripheral interface circuit comprises a LAN interface, a USB interface and an SD card interface.
3. The hand-held firer test terminal as recited in claim 1, wherein said ARM single board computer is connected to said display unit via an RGB interface.
4. The handheld firer test terminal as claimed in claim 1, wherein the ARM single-board computer is communicatively connected to the carrier board via an SPI bus.
5. The hand-held type firer test terminal as claimed in claim 4, wherein an isolation circuit is arranged between the firer test circuit and the ARM single board computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183418.XA CN111006557B (en) | 2019-11-27 | 2019-11-27 | Handheld fire testing terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183418.XA CN111006557B (en) | 2019-11-27 | 2019-11-27 | Handheld fire testing terminal |
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| CN111006557A CN111006557A (en) | 2020-04-14 |
| CN111006557B true CN111006557B (en) | 2022-06-28 |
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