CN210802242U

CN210802242U - Rotary table control unit for missile performance test system

Info

Publication number: CN210802242U
Application number: CN201921799105.2U
Authority: CN
Inventors: 黄文斌; 刘永进; 王正军; 张连武; 赵晔; 李万领; 宋祥君; 毛向东; 刘彦宏; 王振生
Original assignee: 32181 Troops of PLA
Current assignee: 32181 Troops of PLA
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-19
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a turntable control unit for a missile performance testing system, which comprises a turntable control unit box body, a first alternating current input interface is embedded in the turntable control unit box body, the first alternating current input interface is connected with a first switch power supply input end through a first power switch, the output end of the first switching power supply is connected with one input end of the first power supply processing circuit, a first direct current power supply socket is embedded on the box body of the turntable control unit, the first direct current power socket is connected with the other input end of the first power processing circuit, the output end of the first power supply processing circuit is divided into three paths, the first path is connected with a power supply wiring terminal of the turntable control interface, the second path is connected with a power supply voltage detection interface of the first main control chip module, and the third path is connected with a power supply input end of the CAN communication chip. The turntable control unit can improve the fault diagnosis rate and the maintenance efficiency.

Description

Rotary table control unit for missile performance test system

Technical Field

The utility model relates to a guided missile testing arrangement technical field especially relates to a guided missile is revolving stage the control unit for capability test system.

Background

The missile ground testing device is used for carrying out comprehensive function inspection and monitoring on all subsystems and the whole missile before the missile is launched, and setting flight parameters to enable the missile to be in a standby state. Before the missile is launched, although comprehensive and detailed unit test and comprehensive test are carried out, in order to ensure reliable and safe launching of the missile, one test is still required after the missile enters a launching field, but test items are few and precise. The main key inspection items comprise power supply system inspection, initiating explosive device ignition path inspection, path resistance inspection, ignition time sequence test, small loop dynamic test and the like, if parameter out-of-tolerance or faults are found in the test process, the parameters are carefully analyzed, fault location is carried out, and effective measures are taken to remove the faults.

The early missile ground comprehensive testing system adopts manual testing or semi-automatic testing, and has the defects of large volume, poor portability, complex testing process, more required equipment, manual participation, low efficiency, long testing and launching control interval time, short distance between a person and a tested missile and potential safety hazard. With the progress of missile automatic testing technology, the traditional manual or semi-automatic testing is converted into concise automatic testing, which is imperative.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem how to provide a guided missile is revolving stage the control unit for capability test system that can improve failure diagnosis rate and maintenance efficiency.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides a guided missile is revolving stage control unit for capability test system which characterized in that: the turntable control unit comprises a turntable control unit box body, a first alternating current input interface is embedded in the turntable control unit box body, the first alternating current input interface is connected with a first switch power supply input end through a first power switch, the output end of the first switch power supply is connected with one input end of a first power supply processing circuit, a first direct current power supply socket is embedded in the turntable control unit box body, the first direct current power supply socket is connected with the other input end of the first power supply processing circuit, the output end of the first power supply processing circuit is divided into three paths, the first path is connected with a power connection terminal of the turntable control interface, the second path is connected with a power supply voltage detection interface of a first main control chip module, the third path is connected with a power supply input end of a CAN communication chip, the main control chip module is connected with the CAN communication chip in a bidirectional mode, and the CAN communication chip is connected with the turntable control interface in a bidirectional mode, the computer test system comprises a turntable control interface, a USB interface, a data acquisition interface, a computer measurement and control unit, a missile performance test unit, a main control chip module and a data acquisition interface, wherein the turntable control interface is connected with the turntable control interface on a target simulation turntable, the USB interface and the data acquisition interface are embedded in a box body of a turntable control unit, the computer measurement and control unit is connected with the data acquisition card through the USB interface, the missile performance test unit is connected with the data acquisition card through the data acquisition interface, the data acquisition card is connected with an IO (input/output) port of the main control chip module through a port conversion connector;

the first power supply processing circuit comprises a +24V power supply module, a +12V power supply module and a +5V power supply module, wherein the +24V power supply module comprises a relay K3, a coil of the relay K3 is connected with a +24V power supply output end of a first switching power supply, a normally closed contact of a single-pole double-throw switch of K3 is connected with the +24V power supply output end of a direct-current power supply module, a normally open contact of the single-pole double-throw switch of K3 is connected with the +24V power supply output end of the first switching power supply, a common contact of the single-pole double-throw switch of K3 is divided into three paths, the first path is the +24V power supply output end, the second path is grounded through a capacitor C18, and the third path is grounded through a capacitor C16;

the +12V power supply module comprises a connector P1, wherein

pins

1 and 2 of the connector P1 are connected with a +24V power supply output end of a first switching power supply,

pins

3 and 4 of the P1 are grounded,

pins

1 and 2 of the P1 are divided into three paths, the first path is grounded through a capacitor C4, the second path is grounded through a capacitor C3, the third path is connected with a power supply input end of a power supply conversion chip U1 for converting 24V into 12V, pin 1 of the U1 is grounded, pin 3 of the U1 is connected with one normally-open contact of a double-pole double-throw switch of a relay K1, and pin 4 of the U1 is connected with the other normally-open contact of a double-pole double-throw switch of the relay K1; one end of the coil of the K1 is connected with the +24V power supply output end of the first switching power supply, and the other end of the coil is grounded; one normally closed contact of the K1 double-pole double-throw switch is connected with the +12V power supply output end of the first switching power supply, the other normally closed contact of the K1 double-pole double-throw switch is grounded, one common terminal of the K11 double-pole double-throw switch is divided into four paths, the first path is the +12V power supply output end, the second path is grounded through a capacitor C2, the third path is grounded through a capacitor C1, the fourth path is grounded through a resistor R1 and a resistor R2 in sequence, and the capacitor C5 is connected with the resistor R2 in parallel;

the +5V power supply module comprises a voltage conversion chip U4, wherein 1 pin of the U4 is divided into three paths, the first path is grounded through a capacitor C9, the second path is grounded through a capacitor C10, the third path is connected with the +12V power supply output end of the direct current power supply module, 4 pins of the U4 are grounded, 3 pins of the U4 are connected with one normally closed contact of a double-pole double-throw switch of a relay K2, and the other normally closed contact of the double-pole double-throw switch of the relay K2 is grounded; a pin 1 of a 24V-to-5V voltage conversion module U6 is grounded, a pin 2 of the U6 is connected with an output end of a +24V power module of a first switching power supply, a pin 3 of the U6 is connected with a normally open contact of a double-pole double-throw switch of the relay K2, a pin 5 of the U6 is connected with another normally open contact of the double-pole double-throw switch of the relay K2, a common contact of the double-pole double-throw switch of the relay K2 is divided into four paths, the first path is a +5V power supply output end, the second path is grounded through a capacitor C14, the third path is grounded through a capacitor C13, the third path is grounded after sequentially passing through a resistor R9 and a resistor R10, and the capacitor C15 is grounded through the resistor R10; one end of the coil of the K2 is connected with the +24V power supply output end of the first switching power supply, and the other end of the coil is grounded;

the master control chip module comprises an AT90CAN32 type master control chip U7, a pin 30 of the U7 is connected with a pin 1 of a TD501MCANFD type CAN bus chip U8 through a resistor R18, and a pin 31 of the master control chip U7 is connected with a pin 2 of the U8 through a resistor R17; the 3 feet of U8 ground connection, U8's 4 feet connect +5V power, U8's 5 feet are unsettled, U8's 6 feet and 7 feet are bus connection end, main control chip U7's 48 feet divide into two routes, and first route is connected through resistance R12 ground connection, and the second route is connected with triode Q1's base through resistance R11, Q1's emitter ground connection, Q1's collecting electrode is connected with bee calling organ LS 1's earthing terminal, bee calling organ LS 1's power input end is connected with +12V power.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the test system adopts a mode of program control of an upper computer and a lower computer, and reduces the dependence of the system on upper computer software and hardware resources of the data acquisition card. The system functions are divided, upper computer software is responsible for overall flow control, data processing and display, and lower computer programs are responsible for control in the unit; the mode is convenient for later-stage system expansion, main control work inside the new test unit is realized by an internal lower computer program, data transmission is completed through a communication interface and a data acquisition card in the turntable control unit, and the hardware dependence on a common unit (turntable control) is reduced. And in the later expansion process, the rotary table control unit can meet the system requirement.

A control circuit board is placed in the target simulation rotary table, and the rotary table control part is removed from a public unit (rotary table control unit), so that the internal structure of the rotary table control unit is simplified, the internal interference of a driving part on a system is reduced, and the test stability is improved. The rotation speed adjustment, the light source adjustment and other control functions of the rotary table are realized in a communication mode, and the control of the rotary table is realized by an internal control circuit board and is not limited by other external hardware resources. Meanwhile, sound and optical signal on the missile are detected and designed on the control circuit board, and sound and optical signal states are sent in a communication mode, so that a product testing cable structure is simplified, and later-stage system expansion is facilitated.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of a test system according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of a missile performance testing system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a turntable control unit in an embodiment of the present invention;

fig. 4 is a schematic block diagram of a turntable control unit in an embodiment of the present invention;

fig. 5 is a communication network diagram of a turntable control unit in an embodiment of the present invention;

fig. 6 is a schematic diagram of an internal power processing circuit in an embodiment of the invention;

fig. 7 is a schematic diagram of a main control circuit of the turntable control unit in the embodiment of the present invention;

fig. 8 is a flowchart of the internal program of the turntable control unit according to the embodiment of the present invention;

fig. 9 is a flow chart of power down detection interruption inside the turntable control unit in the embodiment of the present invention;

wherein: 1. a system box body; 2. a computer measurement and control unit; 3. a turntable control unit; 4. a missile performance testing unit; 5. a launching mechanism test unit; 6. a target simulation turntable; 7. a gas cylinder; 9. the rotary table controls the unit box.

Detailed Description

The technical solutions in the embodiments of the present invention are 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 only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As shown in figure 1, the embodiment of the utility model discloses guided missile test system, including system box 1, be provided with computer measurement and control unit placing grid, revolving stage control unit placing grid, guided missile capability test unit placing grid, launching mechanism test unit placing grid, target simulation revolving stage placing grid, gas cylinder placing grid, gas circuit annex placing grid, gas cylinder support placing grid, supporting connection cable placing grid and revolving stage annex placing grid in the system box. The computer measurement and control unit 2 is positioned in the computer measurement and control unit placing grid, the rotary table control unit 3 is positioned in the rotary table control unit placing grid, the missile performance testing unit 4 is positioned in the missile performance testing unit placing grid, the launching mechanism testing unit 5 is positioned in the launching mechanism testing unit placing grid, the target simulation rotary table 6 is placed in the target simulation rotary table placing grid, the gas cylinder 7 is placed in the gas cylinder placing grid, the gas circuit accessory is positioned in the gas circuit accessory placing grid, the gas cylinder support is positioned in the gas cylinder support placing grid, the matching connecting cable is positioned in the matching connecting cable placing grid, the rotary table accessory is positioned in the rotary table accessory placing grid, the testing of the missile performance is completed through the cooperation of the computer measurement and control unit 2, the turntable control unit 3, the missile performance testing unit 4 and the air source component; and the missile launching mechanism is tested by matching the computer measurement and control unit 2 and the launching mechanism testing unit 5.

A notebook is used as a main body of the computer measurement and control unit, and the computer measurement and control unit 2 is used as an upper computer of the system to realize functions of hardware function control, data acquisition, system maintenance and database management of each part in the system; the computer measurement and control unit is communicated with the turntable control unit or the transmitting mechanism test unit through a USB interface, so that data transmission is realized.

As shown in fig. 2, the schematic block diagram of the missile performance testing system is shown, in which the ac power input interface of the turntable control unit and the ac power input interface of the missile performance test are connected to an ac power socket through an ac power connection line, and the ac power input interface of the computer measurement and control unit is connected to the ac power socket through a power adapter; the direct current input interface of the turntable control unit and the direct current input end interface of the missile performance testing unit are connected with the power supply input end of the direct current power supply module through a direct current power supply cable; the computer measurement and control unit is connected with the turntable control unit through a serial port, and the turntable control unit is bidirectionally connected with the target simulation turntable through a turntable control interface to perform data interaction; the rotary table control unit is in bidirectional connection with the missile performance testing unit through a data acquisition interface to perform data interaction; the missile performance testing unit is connected with a data acquisition interface of a missile on the target simulation turntable; the gas cylinder is connected with the inflating adapter through a pipeline, and a gas source is provided for missile refrigeration through gas in the gas cylinder.

The missile performance testing system comprises the following testing processes:

1) and taking the computer measurement and control unit, the rotary table control unit, the missile performance testing unit, the target simulation rotary table, the gas cylinder and related accessories out of the storage and transportation box, and correctly unfolding on an operation table.

2) And the turntable control unit and the missile performance testing unit are connected through a data acquisition cable.

3) And connecting the target simulation rotary table with a rotary table control interface of a rotary table control unit through a rotary table control cable.

4) And the turntable control unit is connected into a USB interface of the computer measurement and control unit through a USB data line.

5) The turntable control unit and the missile performance testing unit are connected into a mains supply through an alternating current power line, and can also be connected into a 24V direct current power supply (the output current is greater than 12A) through a direct current power supply cable.

6) And operating missile testing software on the computer measurement and control unit to complete self-inspection of the missile testing unit and the rotary table unit.

7) After self-checking is completed, the missile is placed on a target simulation rotating platform according to requirements, a sound pick-up is placed at a missile buzzer, and a barrel light detection sensor is clamped into a light source on a sighting device.

8) One end of the cylinder test cable is inserted into a product interface of the missile test unit, and two connectors at the other end are respectively connected into an initiating control interface and a test interface of the missile.

9) The gas cylinder is connected into the gas supply interface through the gas pipe and the gas charging head.

10) And on the test software, entering a conduction test interface, clicking a conduction test button to complete the static resistance conduction test of the missile, automatically storing data after the test is completed, giving a conclusion whether the conduction is qualified, failing to conduct the test, not entering an electrical property test interface, and entering the electrical property test interface after the conduction test is qualified.

11) And opening a gas cylinder valve, clicking a start button on an electrical performance test interface to start an electrical performance test, sequentially completing the electrical performance parameter tests according to a software flow, automatically storing data after the test is completed, and giving a conclusion whether the electrical performance parameter is qualified or not.

12) And after the test is finished, closing the gas cylinder valve.

As shown in fig. 3, the turntable control unit comprises a turntable control unit box body 9, an aluminum structural frame is adopted in the box body, five surfaces of the aluminum structural frame are bent and welded by an aluminum plate and then riveted with the aluminum structural frame, and a sixth surface of the aluminum structural frame is installed with a sealing strip by an aluminum plate and then installed with the frame through screws. By adopting the box body structure, the number of the splicing surfaces of the box body is reduced, the later sealing is convenient, and the effects of moisture prevention and salt mist prevention are achieved. Part of the connectors are installed through the sealing gaskets to achieve the sealing effect, and the power socket without the sealing gaskets and the USB interface achieve the sealing effect through the internal gluing mode. The front end and the rear end of the rotary table control unit are provided with nylon covers, the shape and the structure of the rotary table control unit are kept consistent with those of a unit in a portable air defense missile equipment comprehensive detection system, the whole size of the rotary table control unit is 330 x 225 x 110mm (no lifting handle is included), and the weight is not more than 6 Kg. And the AD interface, the DA, the DO, the DI and the pulse output interface of the data acquisition card are connected to the data acquisition interface through wires. The cabinet is painted with GY06 color, and the side of the equipment is printed with marks such as name, development and production unit, etc.

As shown in fig. 4, a first ac input interface is embedded in the turntable control unit box 9, the first ac input interface is connected to a first switching power input end through a first power switch, an output end of the first switching power is connected to an input end of a first power processing circuit, a first dc power socket is embedded in the turntable control unit box 9, the first dc power socket is connected to another input end of the first power processing circuit, an output end of the first power processing circuit is divided into three paths, the first path is connected to a power connection terminal of the turntable control interface, the second path is connected to a power voltage detection interface of a first main control chip module, the third path is connected to a power input end of a CAN communication chip, the main control chip module is connected to the CAN communication chip in two ways, and the CAN communication chip is connected to the turntable control interface in two ways, through revolving stage control interface with revolving stage control interface connection on the target simulation revolving stage, USB interface and data acquisition interface are embedded to on the revolving stage control unit box 9, the computer observes and controls the unit and passes through the USB interface with data acquisition card connects, and the guided missile capability test unit pass through the data acquisition interface with data acquisition card connects, data acquisition card pass through port conversion connector with the IO mouth of master control chip module is connected, port conversion connector with through IO/CNT interface connection between the data acquisition interface.

TABLE 1 turntable control unit external interface

Watch 2 turntable control unit matching external cable

Serial number	Cable name	Interface type	Specification/model
				1	AC power line	Three-core	220V/10A 3m
2	DC power line	Y11B-1207 TK-Red, Black copper nose	3m
				3	USB line	A type male head-B type male head	1.5m
4	Turntable control line	Y11B-1208TK-Y11B-1208TK	15m
				5	Data acquisition line	J36A-52TK-J36A-52TK	1.5m

The alternating current power line and the USB line are made of standard goods shelf products, the direct current power line, the rotary table control line, the data acquisition line AFK-250 and the AFKP-250 high-temperature conducting wire, and the tail of the cable is sleeved with a green nylon yarn sleeve. The supporting cable of the turntable control unit is placed in the storage and transportation box along with the turntable control unit, and the total weight of the supporting cable is not more than 3 Kg.

Internal cable connection: in order to improve the reliability of the turntable control unit and reduce the wiring complexity of an electric fitting, the connection relation and the connection mode of an internal cable are optimized, and the assembly and debugging efficiency is improved. The SISI-68 core plug of the data acquisition card is switched into a socket of a J30J-37 core through a circuit board, and the node is connected into a data acquisition interface on the box body by adopting a lead wire carried by the J30J-37 core plug. 2.54 double-row pins led out by the data acquisition card DO and DI are switched into a socket with J30J-15 cores through a circuit board, and the nodes are connected into a data acquisition interface on the box body by adopting a lead wire carried by a J30J-15 core plug. After the sockets and the switches are installed on the box body and are made into independent wire bundles, the sockets and the switches are installed on the box body, the sockets and the switches are connected inside the box body through connectors, the condition that the sockets and the switches are directly connected with each other through wires is eliminated, and assembly is facilitated.

TABLE 3 internal patch cable

Internal work flow: the turntable control unit receives a control command of an upper computer (a computer measurement and control unit) through the data acquisition card, one part of the command directly passes through an IO port of the data acquisition card to realize rear-end hardware operation, the other part of the command is forwarded to the target simulation turntable through the main control chip to realize communication with the target simulation turntable, and meanwhile, the data acquisition card returns a numerical value acquired by an AD port to the upper computer for processing. A temperature detection chip and a clock chip are designed on the circuit board, and the upper computer software can detect the current equipment working temperature environment through communication. The time chip is automatically timed after being electrified, when the device is started every time, the main control chip stores the last test time and stores the test time in an accumulated mode, and meanwhile, the EPPROM storage device in the main control chip carries out accumulated self-checking and test times, so that the device reliability can be conveniently counted and analyzed in the later period.

As shown in fig. 5, for an internal communication loop, the turntable control unit communicates with the computer measurement and control unit through a USB interface, communicates with the target simulation turntable through a CAN interface, and communicates with the XXX missile performance test unit through an IO interface. And the communication command of the upper computer software is transmitted to the data acquisition card of the turntable control unit through a USB data line. A group of IO of the data acquisition card is communicated with a main control chip in the turntable control unit through the simulation SPI interface, and the main control chip is connected with a CAN communication interface in the target simulation turntable through a CAN interface to realize the communication with the target simulation turntable. And the other group of IO of the data acquisition card is communicated with a main control chip in the missile performance test unit through the simulation SPI interface to complete IO expansion in the missile performance test unit and realize control of an internal hardware circuit.

The principle of the internal power supply processing circuit is shown in fig. 6, the first power supply processing circuit includes a +24V power supply module, a +12V power supply module and a +5V power supply module, the +24V power supply module includes a relay K3, a coil of the relay K3 is connected with a +24V power supply output end of a first switching power supply, a normally closed contact of a single-pole double-throw switch of the K3 is connected with the +24V power supply output end of a direct-current power supply module, a normally open contact of a single-pole double-throw switch of the K3 is connected with a +24V power supply output end of the first switching power supply, a common contact of the single-pole double-throw switch of the K3 is divided into three paths, the first path is the +24V power supply output end, the second path is grounded through a capacitor C18, and the third path;

the +12V power supply module comprises a connector P1, wherein pins 1 and 2 of the connector P1 are connected with a +24V power supply output end of a first switching power supply, pins 3 and 4 of the P1 are grounded, pins 1 and 2 of the P1 are divided into three paths, the first path is grounded through a capacitor C4, the second path is grounded through a capacitor C3, the third path is connected with a power supply input end of a power supply conversion chip U1 for converting 24V into 12V, pin 1 of the U1 is grounded, pin 3 of the U1 is connected with one normally-open contact of a double-pole double-throw switch of a relay K1, and pin 4 of the U1 is connected with the other normally-open contact of a double-pole double-throw switch of the relay K1; one end of the coil of the K1 is connected with the +24V power supply output end of the first switching power supply, and the other end of the coil is grounded; one normally closed contact of the K1 double-pole double-throw switch is connected with the +12V power supply output end of the first switching power supply, the other normally closed contact of the K1 double-pole double-throw switch is grounded, one common terminal of the K11 double-pole double-throw switch is divided into four paths, the first path is the +12V power supply output end, the second path is grounded through a capacitor C2, the third path is grounded through a capacitor C1, the fourth path is grounded through a resistor R1 and a resistor R2 in sequence, and the capacitor C5 is connected with the resistor R2 in parallel;

the +5V power supply module comprises a voltage conversion chip U4, wherein 1 pin of the U4 is divided into three paths, the first path is grounded through a capacitor C9, the second path is grounded through a capacitor C10, the third path is connected with the +12V power supply output end of the direct current power supply module, 4 pins of the U4 are grounded, 3 pins of the U4 are connected with one normally closed contact of a double-pole double-throw switch of a relay K2, and the other normally closed contact of the double-pole double-throw switch of the relay K2 is grounded; a pin 1 of a 24V-to-5V voltage conversion module U6 is grounded, a pin 2 of the U6 is connected with an output end of a +24V power module of a first switching power supply, a pin 3 of the U6 is connected with a normally open contact of a double-pole double-throw switch of the relay K2, a pin 5 of the U6 is connected with another normally open contact of the double-pole double-throw switch of the relay K2, a common contact of the double-pole double-throw switch of the relay K2 is divided into four paths, the first path is a +5V power supply output end, the second path is grounded through a capacitor C14, the third path is grounded through a capacitor C13, the third path is grounded after sequentially passing through a resistor R9 and a resistor R10, and the capacitor C15 is grounded through the resistor R10; one end of the coil of the K2 is connected with the +24V power supply output end of the first switching power supply, and the other end of the coil is grounded.

The turntable control unit may be powered using an external ac power source or a 24V dc power source. When the turntable control unit is powered by a 220V alternating current power supply, the switching power supply provides +24V and +12V power supplies for the turntable control unit, and after the power supplies are processed by the internal circuit, the switching power supply converts one +5V power supply into three groups of power supplies in total for the internal circuit and the target simulation turntable. When the turntable control unit is powered by an external +24V power supply, the power supply is processed by an internal circuit and then converted into two groups of +12V power supplies and two groups of +5V power supplies, namely three groups of power supplies, which are used by the internal circuit and a target simulation turntable.

The power supply switching of an internal power supply and an external power supply is realized by adopting three relays, the relays all adopt 24V relays, and a relay coil is connected with an external power supply loop. The power supplied by the internal power supply is sent to the back-end circuit for processing through the normally closed contacts of the relays K1, K2 and K3; when the external power supply supplies power, the normally open contact of the relay is closed, and the external power supply is connected to the back-end circuit for processing. When an external direct current power supply supplies power, in order to improve the adaptability of the power supply, a 24V input DC-DC module is adopted to realize power supply conversion, and the DC-DC module has voltage input in a wide range of 19-36V and can better adapt to the change of the external power supply.

As shown in fig. 7, the master chip module includes an AT90CAN32 type master chip U7, a pin 30 of the U7 is connected to a pin 1 of a TD501MCANFD type CAN bus chip U8 through a resistor R18, and a pin 31 of the master chip U7 is connected to a pin 2 of the U8 through a resistor R17; the 3 feet of U8 ground connection, U8's 4 feet connect +5V power, U8's 5 feet are unsettled, U8's 6 feet and 7 feet are bus connection end, main control chip U7's 48 feet divide into two routes, and first route is connected through resistance R12 ground connection, and the second route is connected with triode Q1's base through resistance R11, Q1's emitter ground connection, Q1's collecting electrode is connected with bee calling organ LS 1's earthing terminal, bee calling organ LS 1's power input end is connected with +12V power.

The main control chip is powered by a +5V power supply, IO10, IO11 and II3 of the data acquisition card are respectively connected with PB2, PB1 and PB3 ports of the main control chip, and the three ports realize data transmission of the data acquisition card and the main control chip through an analog SPI communication mode. The main control chip is connected with the CAN interface module through CAN control interfaces PD5 and PD6 to realize CAN communication with the target simulation turntable. The EPPROM of the main control chip utilizes 30 bytes to store the control unit of the rotary table, accumulate the running time, the self-checking qualified times, the self-checking unqualified times, the testing times and the last three testing times.

A data acquisition card: the data acquisition card is a core component of the system, is responsible for system hardware control and data acquisition functions, and needs to have more resources to meet the requirements of the system hardware and software.

The data acquisition card is connected with the computer measurement and control unit through a USB interface. The data acquisition card, AD is 16 bits, the total sampling rate is 500KS/s, 32 high-density channels and 4MS (sampling point) hardware FIFO meet the requirements of real-time acquisition and transmission; 1 channel counter/pulse generator (timer) to generate digital pulse waveform and realize rich counting function; 16-channel low-speed 16-bit DA can be used in occasions requiring various control voltages; the data acquisition card also supports 12-way DI and 12-way DO.

The power supply is externally arranged to reduce the output power consumption of the USB interface of the computer measurement and control unit, the software supports VC, VB and Labview, the Windows operating system is supported, and the resources can meet the requirements of software and hardware.

32 AD channels, 2 DA channels, 10 DO channels, 3 DI channels and 1 pulse generator of the data acquisition card are led out through the data acquisition interface, and the extension requirements of various portable air defense missile test units can be met.

Switching power supply: in order to reduce the size and weight of the power supply, a switching power supply and filtering mode is adopted to provide power for the internal control circuit of the turntable control unit and the target simulation turntable. The input voltage of the switching power supply is alternating current 220V, two paths of outputs are adopted, one path of voltage is output at 24V and is used by a target simulation turntable, and the output current is not less than 4A; the other 12V voltage is output for the internal control circuit, and the current is not less than 2A.

The switch power supply adopts a CEA series power supply with built-in surge suppression and filter circuits produced by Beijing force-bearing power supply company Limited, the output voltage is 12&24V, the output current is 3.33&4.58A, and the total output power is 150W. The power supply has the characteristics of wide voltage input range, wide input frequency noise filter, quick dynamic response, input surge suppression circuit, convenient terminal appearance mode, conformity with UL1950 and IEC950 safety regulations and the like. The output voltage stabilization precision is +/-1%, the voltage regulation rate is +/-0.2%, the load regulation rate is +/-0.5%, and the temperature change rate is +/-0.02%/DEG C. The power supply has two specifications of industrial grade and military grade, and MTBF is greater than 500000 hrs. The industrial grade working temperature range is-25 ℃ to +85 ℃, and the storage temperature range is-45 ℃ to +105 ℃. The military-grade working temperature range is-40 ℃ to +85 ℃, and the storage temperature range is-55 ℃ to +105 ℃. According to the requirement of the environmental adaptability of the system, the requirement can be met by selecting an industrial power supply, and the upgrading requirement can be met by purchasing an military power supply when the environmental adaptability needs to be improved in the later stage.

A DC-DC module: in order to facilitate field use, a 24V direct-current power supply input interface is additionally arranged on the turntable control unit, power conversion is carried out inside the turntable control unit through two DC-DC modules, a +12V power supply and a +5V power supply are provided, and an external direct-current power supply can be used for supplying power under the condition that an alternating-current power supply cannot be normally provided. The power module has a wide voltage input range of 18-36V, a pi-type filter is arranged in an input end, the voltage output precision is +/-1%, the full-load output power is 10W, the conversion efficiency is greater than 80%, and the metal shell is adopted for heat dissipation, so that the use requirement can be met. The DC-DC module has a working temperature range of-40 ℃ to +85 ℃ and a storage temperature range of-40 ℃ to +125 ℃, has good shielding anti-interference performance and electromagnetic compatibility, and can meet the environmental adaptability requirement provided by the system. The MTBF of the DC-DC module is 200000h, and the reliability requirement provided by the system can be met.

Temperature collection: the LM75 is a temperature sensor of the high IIC interface, can directly convert the temperature into a digital signal within the temperature range of-55 ℃ to +125 ℃, and can realize the precision of 0.125 ℃. The main control chip directly reads the data in the internal register through the IIC bus, and can operate 4 data registers through the IIC to set different working modes.

Timing clock: the DS1302 is adopted as a real-time clock chip of a turntable control unit, the DS1302 is a high-performance low-power-consumption real-time clock circuit with a RAM (random access memory) and is promoted by DALLAS company of America, the real-time clock circuit can be used for timing year, month, day, week, hour, minute and second, the real-time clock circuit has a leap year compensation function, and the working voltage is 2.5V-5.5V. The synchronous communication with CPU is carried out by three-wire interface, and the clock signal or RAM data of multiple bytes can be transmitted at one time by burst mode.

A master controller: an AT90CAN32 singlechip is used as a master controller, and the singlechip is a low-power-consumption 8-bit CMOS microcontroller based on an enhanced AVR RISC structure. The AT90CAN32 has the following characteristics: the system programmable Flash of 32K byte, missile PROM of 1K byte, SRAM of 2K byte, 53 general I/O port lines, 32 general working registers, three-output comparison or 16 bit PWM output, programmable serial USART, two-wire serial interface facing byte, 10 bit 8-way ADC, programmable watchdog timer with in-chip oscillator, one SPI serial port, working voltage of 2.7-5.5V, working temperature range of-40 ℃ - +85 ℃, and one CAN controller, CAN meet the use requirement.

Connector assembly: the direct-current power supply interface and the rotary table control interface adopt Y11 series circular electric connectors, the electric connectors conform to GJB101A-1997 standard, and the electric connectors are suitable for electric signal connection of strategic weapon systems, space satellite systems, aviation and navigation transportation tools, communication and detection systems and the like. The inner bayonet type locking circular electric connector has the advantages of quick connection and quick separation, small volume, light weight and the like. The contact is the welded type, and the casing has sealed, dustproof and rain-proof performance. The installation mode adopts flange type installation. The number of pairs of connectors is 2-61 cores, and actual requirements can be met.

The environmental conditions for use of the Y11 series circular electrical connector were as follows, operating temperature: -55 ℃ to 125 ℃; relative humidity: the relative humidity is 90-95% at 40 ℃; rain-proof: the rainfall is 5 mm/min; mechanical life: plugging and unplugging are more than or equal to 500 times; the rated current of a 1mm diameter contact pin is 5A; the rated current of a 1.5mm diameter contact pin is 10A; the insulation resistance is not lower than 20 MOmega under the moist and rain condition; the environmental condition of the product can meet the use requirement.

The external data acquisition interface adopts a J36A-52ZJ rectangular electric connector, the series of electric connectors execute the detailed specification of Q/HD20038-2007 and belong to an instrument type electric connector. The double-safety lock has the advantages of small volume, high density, complete specification, double-safety locking structure, high reliability and the like, and the termination form adopts a welding type structure. The method is widely applied to the connection of electric signals in equipment instrument cabins in the industries of aerospace, aviation, weaponry, ships, communication, computers and the like.

The use environment conditions of the J36A series rectangular electric connector are as follows: -55 ℃ to 125 ℃; relative humidity: the relative humidity is 90-95% at 40 ℃; mechanical life: plugging and unplugging are more than or equal to 500 times; the rated current of the contact pin is 5A; the insulation resistance is not lower than 50M omega under the humid condition; the withstand voltage is not lower than 500V under the humid condition; the environmental condition of the product can meet the use requirement.

The internal switching and signal transmission adopt a J30J series dimensional rectangular electric connector, the connector conforms to GJB2446 standard, and an aluminum alloy shell and various aluminum alloy tail clamps are adopted; and by adopting a twisted wire type contact pin, the number of contact points of a single contact element reaches 7, so that the contact reliability of the product is improved.

The using environmental conditions and the working temperature of the J30J series micro-rectangular electric connector are as follows: -55 ℃ to 125 ℃; relative humidity: the relative humidity is 90-95% at 40 ℃; mechanical life: plugging and unplugging are more than or equal to 500 times; the rated current of the contact pin is 3A; the contact resistance is not more than 10m omega; the insulation resistance is not lower than 5000M omega; the medium withstand voltage is 800V; the environmental condition of the product can meet the use requirement.

Designing internal software: the program in the main control chip is compiled by adopting C language, and is developed by using AVR Studio integrated development environment, and the development environment comprises functions of compiler, debugging function, serial and parallel download function, JTAG ICE simulation and the like. The system can complete the development and debugging of high-level language products by matching with any high-level language compiler, and can run under a Win7 system.

And after the power-on initialization is finished, the main control chip reads the last running time storage data of the internal missile PROM and performs accumulated storage.

And a singlechip in the turntable control unit executes a temperature and voltage self-checking program, and gives an alarm prompt if the self-checking is abnormal. The self-checking is normal, and after a normal prompt tone is sent, the command of the upper computer is waited.

And the main control program waits for the command of the upper computer software and executes the corresponding control program according to the command.

The flow of the program inside the turret control unit is shown in fig. 8. The external interrupt of the main chip is connected with a power failure detection circuit, when the external power failure occurs and the external interrupt is triggered, an interrupt program is entered, and continuous operation time reading and storing programs are executed to finish data storage. The program flow is shown in fig. 9.

The missile performance testing unit is internally provided with a switching power supply, a DC-DC conversion circuit, a control circuit board, a starting module and the like, is connected with the missile performance testing unit through a barrel testing cable, provides an excitation signal for work, and simultaneously inputs a feedback signal into an internal signal processing circuit; the control device is connected with the turntable control unit through a data acquisition cable, receives the control of the turntable control unit, and transmits signals processed by the signal processing circuit into the turntable control unit for analog-to-digital conversion to complete the control and data acquisition functions of the cylinder.

Claims

1. The utility model provides a guided missile is revolving stage control unit for capability test system which characterized in that: the turntable control unit comprises a turntable control unit box body (9), a first alternating current input interface is embedded into the turntable control unit box body (9), the first alternating current input interface is connected with a first switch power supply input end through a first power switch, the output end of a first switch power supply is connected with one input end of a first power supply processing circuit, a first direct current power supply socket is embedded into the turntable control unit box body (9), the first direct current power supply socket is connected with the other input end of the first power supply processing circuit, the output end of the first power supply processing circuit is divided into three paths, the first path is connected with a power connection terminal of the turntable control interface, the second path is connected with a power supply voltage detection interface of a first main control chip module, the third path is connected with a power supply input end of a CAN communication chip, and the main control chip module is in bidirectional connection with the CAN communication chip, the CAN communication chip is bidirectionally connected with the rotary table control interface and is connected with the rotary table control interface on the target simulation rotary table through the rotary table control interface, a USB interface and a data acquisition interface are embedded into the rotary table control unit box body (9), a computer measurement and control unit is connected with the data acquisition card through the USB interface, a missile performance testing unit is connected with the data acquisition card through the data acquisition interface, the data acquisition card is connected with an IO port of the main control chip module through a port conversion connector, and the port conversion connector is connected with the data acquisition interface through an IO/CNT interface;

2. A turret control unit for a missile performance testing system in accordance with claim 1 wherein: the first switching power supply adopts a CEA series power supply with a built-in surge suppression and filter circuit, which is produced by Beijing force-bearing power supply company Limited, the input voltage is alternating current 220V, two paths of outputs are used, one path of 24V voltage is output and is used by a target simulation turntable, and the output current is not less than 4A; the other 12V voltage is output for the internal control circuit, and the current is not less than 2A.

3. A turret control unit for a missile performance testing system in accordance with claim 1 wherein: the turntable control unit further comprises a temperature sensor, the temperature sensor is connected with the first main control chip module in a bidirectional mode through an IIC interface, and the temperature sensor is used for collecting temperature information of the turntable control unit; the first main control chip module further comprises a timing clock, and the timing clock uses a real-time clock chip which adopts a DS1302 as a turntable control unit; the first main control chip module uses an AT90CAN32 single chip microcomputer as a main control chip.