CN217305706U - Focusing and zooming mechanism control device capable of measuring temperature - Google Patents
Focusing and zooming mechanism control device capable of measuring temperature Download PDFInfo
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- CN217305706U CN217305706U CN202220331553.5U CN202220331553U CN217305706U CN 217305706 U CN217305706 U CN 217305706U CN 202220331553 U CN202220331553 U CN 202220331553U CN 217305706 U CN217305706 U CN 217305706U
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Abstract
But focusing zoom mechanism controlling device of temperature measurement relates to the debugging of optics focusing zoom mechanism and detects technical field, especially a focusing zoom mechanism controlling device of temperature measurement that convenient operation, debugging are efficient. The utility model discloses a but focusing zoom mechanism controlling device of temperature measurement installs in the tuning zoom controls box, its characterized in that this controlling device includes main processing circuit, controls circuit and temperature measurement circuit, wherein main processing circuit and controls the circuit and install inside the focusing zoom controls box; the utility model discloses a but focusing zoom mechanism controlling device of temperature measurement, owing to from taking the temperature measurement circuit, can be when debugging and inspection focusing zoom mechanism, need not use high low-temperature cabinet, just can judge whether the drive circuit work of focusing zoom mechanism is normal. The debugging time is reduced, the debugging efficiency is improved, and the testing cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the debugging detection technique of optics focusing zoom mechanism and specifically relates to a focusing zoom mechanism controlling device of temperature measurement that convenient operation, debugging are efficient.
Background
The focusing and zooming mechanism of the infrared photoelectric observing and sighting system comprises a driving circuit and an optical zooming mechanism, as shown in fig. 1, wherein the driving circuit comprises a motor driving circuit, a position feedback device and a temperature feedback device. The motor driving circuit is used for controlling the motor to adjust the position of the focusing lens, the position feedback device is used for feeding back the current actual position of the focusing lens, and the temperature feedback device is used for detecting the current temperature of the focusing and zooming mechanism so as to facilitate temperature compensation.
Because the parfocalization of the complete machine optical system of the thermal infrared imager is larger along with the temperature drift, the positions of large, medium and small fields of view of a plurality of preset temperature intervals need to be adjusted and stored in the production stage of the focusing and zooming mechanism so as to realize temperature compensation. After the assembly of the focusing and zooming mechanism is completed, firstly, using a focusing and zooming mechanism control device to detect basic functions at normal temperature, and storing position parameters in a plurality of preset temperature intervals in a driving circuit of the focusing and zooming mechanism; and then, the focusing and zooming mechanism is placed in a high-low temperature box, and the actual position of the lens of the focusing and zooming mechanism is detected whether to accord with the position preset value at the current actual temperature in the high-low temperature box or not under various temperature conditions.
The focusing and zooming mechanism of the infrared photoelectric observing and aiming system needs two paths of RS422 communication, receives an instruction of an operator in an RS422 mode, and simultaneously needs to communicate with other circuits in the infrared photoelectric observing and aiming system in the RS422 mode. In addition, in the independent debugging stage of the focusing and zooming mechanism of the infrared photoelectric observing and aiming system, various parameters need to be input in an RS232 mode, so that a double-serial-port double mode is needed, and in order to truly restore the use environment of the focusing and zooming mechanism, the double-serial-port double mode also needs to be realized by the control device of the focusing and zooming mechanism, so that the switching of two communication modes needs to be realized by using a switch by the control device of the focusing and zooming mechanism.
At present, a focusing and zooming mechanism control device of an existing infrared photoelectric observing and aiming system has a defect that the device does not have a temperature measuring function, the device needs to be matched with a high-low temperature box for use in a production stage, and the fault type of the focusing and zooming mechanism can be judged only by being matched with a temperature measuring device in an external field test stage.
Disclosure of Invention
The utility model aims to solve be exactly that the focusing zoom mechanism of current infrared photoelectricity sight system controls the device and does not have the temperature measurement function, need cooperate the problem that high low-temperature box used in the production phase, provide a focusing zoom mechanism that convenient operation, debugging are efficient can the temperature measurement controls the device.
The utility model discloses a but focusing zoom mechanism controlling device of temperature measurement installs in the tuning zoom controls box, its characterized in that this controlling device includes main processing circuit, controls circuit and temperature measurement circuit, wherein main processing circuit and controls the circuit and install inside the focusing zoom controls box; wherein:
the main processing circuit comprises a single chip microcomputer, a communication mode switching circuit, a communication circuit and a digital tube group driving circuit, the single chip microcomputer is connected with the communication mode switching circuit and the digital tube group driving circuit, the communication circuit comprises an RS232 communication circuit and an RS422 communication circuit, and the two groups of communication circuits are respectively connected with the communication mode switching circuit;
the control circuit comprises a nixie tube group, an independent key group, a self-locking switch and a light-emitting diode lamp, wherein the nixie tube group displays by adopting a four-digit eight-segment nixie tube, is connected with the nixie tube driving circuit and is used for displaying the environment temperature detected by the temperature measuring circuit; the independent key group comprises a control key and a temperature measurement key which are respectively connected with the singlechip; the two self-locking switches are communication mode switching keys, are connected with the single chip microcomputer and are used for switching communication states; four light-emitting diode lamps are arranged above the independent key group and used for indicating the state;
the temperature measuring circuit is connected with the singlechip of the main processing circuit, and the main processing circuit is connected with the direct current power supply.
The single chip of the main processing circuit uses STC12C5A60S2 and is provided with two serial ports; the communication mode switching circuit adopts a relay, the contact on resistance of the relay is small, and signals cannot be distorted in the transmission process; the RS232 communication circuit uses a chip max232, and can realize conversion between TTL level and RS232 level; the RS422 communication circuit uses a chip max490, and can realize conversion between TTL level and RS422 level; the nixie tube group driving circuit adopts a chip 74HCT573, has a latching function, supports multiplexing of single chip microcomputer ports, and can realize that a group of 8 single chip microcomputer ports can transmit nixie tube group segment codes and nixie tube group bit codes and realize time division multiplexing, thereby reducing occupation of the single chip microcomputer ports.
The temperature measuring chip of the temperature measuring circuit adopts DS18B20 and TO-92 direct-insert package, the measuring temperature range is-55 TO + 125 ℃, the precision is +/-0.5 ℃ within-10 TO + 85 ℃, the field temperature is directly transmitted in a digital mode of a one-line bus, the anti-interference performance of the system is greatly improved, and the temperature measuring circuit is suitable for field temperature measurement in severe environment.
The utility model discloses a but focusing zoom mechanism controlling device of temperature measurement, owing to from taking the temperature measurement circuit, can be when debugging and inspection focusing zoom mechanism, need not use high low-temperature cabinet, just can judge whether the drive circuit work of focusing zoom mechanism is normal. The debugging time is reduced, the debugging efficiency is improved, and the testing cost is reduced.
Drawings
Fig. 1 is a functional block diagram of the operation and control of the focusing and zooming mechanism.
The digital tube group temperature measuring device comprises a main processing circuit 1, an operation circuit 2, a temperature measuring circuit 3, a single chip microcomputer 4, a communication mode switching circuit 5, a digital tube group driving circuit 6, an RS232 communication circuit 7, an RS422 communication circuit 8, a digital tube group 9, a self-locking switch 10, an operation key 11, a temperature measuring key 12 and a direct-current power supply 13.
Detailed Description
Example 1: a temperature-measurable control device of a focusing and zooming mechanism is arranged in a focusing and zooming control box and comprises a main processing circuit 1, a control circuit 2 and a temperature measuring circuit 3, wherein the main processing circuit 1 and the control circuit 2 are arranged in the focusing and zooming control box; wherein:
the main processing circuit 1 comprises a single chip microcomputer 4, a communication mode switching circuit 5, a communication circuit and a digital tube group driving circuit 6, the single chip microcomputer 4 is connected with the communication mode switching circuit 5 and the digital tube group driving circuit 6, the communication circuit comprises an RS232 communication circuit 7 and an RS422 communication circuit 8, and the two groups of communication circuits are respectively connected with the communication mode switching circuit 5;
the control circuit 2 comprises a nixie tube group 9, an independent key group, a self-locking switch 10 and a light-emitting diode lamp, wherein the nixie tube group 9 adopts four-digit eight-segment nixie tubes for displaying, is connected with a nixie tube driving circuit and is used for displaying the ambient temperature detected by the temperature measuring circuit 3; the independent key group comprises a control key 11 and a temperature measurement key 12 which are respectively connected with the singlechip 4; the two self-locking switches 10 are communication mode switching keys, are connected with the singlechip 4 and are used for switching communication states; four light-emitting diode lamps are arranged above the independent key group and used for indicating the state;
the temperature measuring circuit 3 is connected with the singlechip 4 of the main processing circuit 1, and the main processing circuit 1 is connected with the direct current power supply 13.
The singlechip 4 of the main processing circuit 1 uses STC12C5A60S2 and is provided with two serial ports; the communication mode switching circuit 5 adopts a relay, the contact on resistance of the relay is small, and signals cannot be distorted in the transmission process; the RS232 communication circuit 7 uses a chip max232, which can realize conversion between a TTL level and an RS232 level; the RS422 communication circuit 8 uses a chip max490, which can realize conversion between a TTL level and an RS422 level; the digital tube group driving circuit 6 adopts a chip 74HCT573, has a latching function, supports 4-port multiplexing of the single chip microcomputer, and can realize that a group of 8 single chip microcomputers 4-port can transmit 9 segment codes of the digital tube group and 9 bit codes of the digital tube group, and time division multiplexing is realized, thereby reducing the occupation of the 4-port of the single chip microcomputer.
The temperature measuring chip of the temperature measuring circuit 3 adopts DS18B20 and TO-92 direct-insert package, the measuring temperature range is-55 TO + 125 ℃, the precision is +/-0.5 ℃ within-10 TO + 85 ℃, the field temperature is directly transmitted in a digital mode of a one-line bus, the anti-interference performance of the system is greatly improved, and the temperature measuring circuit is suitable for field temperature measurement in severe environment.
The focusing and zooming mechanism control device is communicated with a focusing and zooming mechanism of the infrared photoelectric observing and aiming system through a serial port. During debugging, using an RS232 mode, using a focusing and zooming mechanism control device to detect basic functions, and storing position parameters in a plurality of preset temperature intervals in a driving circuit of the focusing and zooming mechanism; when the whole machine works, the RS422 mode is used, the focusing and zooming mechanism control device is used for controlling the focusing and zooming mechanism to switch large, medium and small visual fields, and the actual positions of lenses of the focusing and zooming mechanism under different temperature environments can be different preset values stored in advance in each temperature interval.
The specific debugging process comprises the following steps:
in the production stage of the focusing and zooming mechanism, a temperature measuring circuit 3 of a focusing and zooming mechanism control device capable of measuring temperature is attached to a focusing and zooming mechanism shell of an infrared photoelectric observing and aiming system, a multimeter is arranged at a direct-current voltage gear, a gauge pen of the multimeter is connected to a position feedback device inside a driving circuit of the focusing and zooming mechanism, the position feedback device is used for feeding back the actual position of a lens of the focusing and zooming mechanism, and a slide wire rheostat is used as a common position feedback device. An alternating current to direct current power supply 13 circuit is used for powering up the focusing and zooming mechanism control box capable of measuring temperature, and in addition, a driving circuit of the focusing and zooming mechanism is also powered up at the same time.
Starting debugging, firstly, pressing a communication mode switching key formed by a self-locking switch 10, enabling a focusing and zooming control box to enter an RS232 mode, enabling a communication mode indicator lamp above the key to be lightened, enabling the focusing and zooming control box to send a low-level signal to a driving circuit of a focusing and zooming mechanism through a cable to apply for entering the RS232 communication mode, and enabling an operator to adjust and store the large, medium and small viewing field positions of a plurality of preset temperature intervals by using a viewing field control key 11 formed by a matrix keyboard.
And secondly, starting a temperature measurement mode by using an RS232 mode temperature measurement control key 11 consisting of an independent keyboard, displaying the current environment temperature by the nixie tube group 9, and recording the current temperature.
And thirdly, releasing a communication mode switching key consisting of a self-locking switch 10, enabling a focusing and zooming control box to enter an RS422 mode, enabling a communication mode indicator lamp to be turned off, enabling a driving circuit of a focusing and zooming mechanism to enter the RS422 mode, enabling an operator to use a view field control key 11 consisting of a matrix keyboard to switch large, medium and small view fields, observing display data of a universal meter, judging whether the actual position of a lens of the focusing and zooming mechanism accords with a preset value at the current ambient temperature, and repairing the focusing and zooming mechanism if the actual position of the lens of the focusing and zooming mechanism does not accord with the preset value at the current ambient temperature.
When the control device of the focusing and zooming mechanism capable of measuring temperature is independently detected, a serial port which can be directly connected with a computer is detected in an RS232 mode, and a serial port of the computer is connected for detection after signal conversion is carried out by using a Bosch card in an RS422 mode.
In the outfield test stage of the focusing and zooming mechanism of the infrared photoelectric observing and aiming system, a temperature measurement chip of a focusing and zooming mechanism control device capable of measuring temperature is attached to a shell of the focusing and zooming mechanism, the focusing and zooming mechanism is debugged by using the control device in an RS422 mode, whether the actual position of a lens of the focusing and zooming mechanism accords with a preset value at the current ambient temperature or not is judged, and if not, the focusing and zooming mechanism is repaired. The focusing and zooming mechanism control device capable of measuring temperature can be used for rapidly judging whether the focusing and zooming mechanism works normally or not, so that the testing efficiency is improved. Particularly when large equipment such as a high-low temperature box is not arranged outdoors and used as temperature reference, the fault type of the focusing and zooming mechanism can be quickly positioned through the control device, and the fault type comprises a motor driving circuit fault, a position feedback device fault and a temperature feedback device fault, so that the fault of the focusing and zooming mechanism can be quickly checked.
Claims (1)
1. A temperature-measurable focusing and zooming mechanism control device is arranged in a focusing and zooming control box and is characterized by comprising a main processing circuit (1), a control circuit (2) and a temperature measuring circuit (3), wherein the main processing circuit (1) and the control circuit (2) are arranged in the focusing and zooming control box; wherein:
the main processing circuit (1) comprises a single chip microcomputer (4), a communication mode switching circuit (5), a communication circuit and a digital tube group driving circuit (6), the single chip microcomputer (4) is connected with the communication mode switching circuit (5) and the digital tube group driving circuit (6), the communication circuit comprises an RS232 communication circuit (7) and an RS422 communication circuit (8), and the two groups of communication circuits are respectively connected with the communication mode switching circuit (5);
the control circuit (2) comprises a nixie tube group (9), an independent key group, a self-locking switch (10) and a light-emitting diode lamp, wherein the nixie tube group (9) displays by adopting a four-digit eight-segment nixie tube, is connected with a nixie tube driving circuit and is used for displaying the environment temperature detected by the temperature measuring circuit (3); the independent key group comprises a control key (11) and a temperature measurement key (12) which are respectively connected with the singlechip (4); the two self-locking switches (10) are communication mode switching keys, are connected with the singlechip (4) and are used for switching communication states; four light-emitting diode lamps are arranged above the independent key group and used for indicating the state;
the temperature measuring circuit (3) is connected with the singlechip (4) of the main processing circuit (1), and the main processing circuit (1) is connected with the direct current power supply (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220331553.5U CN217305706U (en) | 2022-02-18 | 2022-02-18 | Focusing and zooming mechanism control device capable of measuring temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220331553.5U CN217305706U (en) | 2022-02-18 | 2022-02-18 | Focusing and zooming mechanism control device capable of measuring temperature |
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| Publication Number | Publication Date |
|---|---|
| CN217305706U true CN217305706U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220331553.5U Active CN217305706U (en) | 2022-02-18 | 2022-02-18 | Focusing and zooming mechanism control device capable of measuring temperature |
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| CN (1) | CN217305706U (en) |
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- 2022-02-18 CN CN202220331553.5U patent/CN217305706U/en active Active
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