CN117728848A - Signal transmitter, signal receiver and position detection system - Google Patents
Signal transmitter, signal receiver and position detection system Download PDFInfo
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- CN117728848A CN117728848A CN202311736989.8A CN202311736989A CN117728848A CN 117728848 A CN117728848 A CN 117728848A CN 202311736989 A CN202311736989 A CN 202311736989A CN 117728848 A CN117728848 A CN 117728848A
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Abstract
The invention relates to the technical field of mine coal mining, and provides a signal transmitter, a signal receiver and a position detection system, wherein the signal transmitter is arranged on the side of a fully-mechanized coal face coal mining machine and comprises a visible light transmitting unit and a combined lens unit; the visible light emission unit is used for emitting visible light exceeding a preset threshold intensity; the combined lens unit is used for controlling the emission range of the visible light emitted by the visible light emission unit and the range covering the hydraulic support by adjusting the zoom area. The invention reduces the error judgment of the hydraulic support control on the position of the coal mining machine, so that the hydraulic support linkage machine following control is more accurate and effective.
Description
Technical Field
The invention relates to the technical field of mine coal mining, in particular to a signal transmitter, a signal receiver and a position detection system.
Background
The linkage of the current fully-mechanized coal mining face coal mining machine and the hydraulic support, especially the automatic following machine, is basically realized by means of an infrared emitter arranged on the coal mining machine and a signal receiver on each support. The infrared transmitter transmits an infrared light wave signal, the infrared receiver receives the infrared light wave signal, and the received data is transmitted to a hydraulic controller arranged on the hydraulic support and used for detecting the position of the coal mining machine, so that the action of the hydraulic support is correspondingly and automatically controlled.
Referring to fig. 1, the infrared receiver can achieve a maximum of 5 meters (distance L in fig. 1) according to the difference of the receiving angles of the infrared receiving head and the infrared transmitting head, and the single-side angle (beta in fig. 1) is not greater than 20 ° in the receiving range, and in practical application, generally 1 to 5 brackets can receive the infrared transmitter signals. Fig. 1 shows an infrared receiver 2' mounted on a support, an infrared transmitter 1' mounted to a shearer 3 '.
The system shown in fig. 1 suffers from the following disadvantages: the distance between the coal mining machine and the support is different in different coal mines, so that the receiving range is changed, the receiving distance and the receiving angle of the infrared transmitter and the infrared receiver are fixed, and therefore, the position judgment error of the coal mining machine can be caused in different coal mines, and the control of the action of the support is influenced.
Accordingly, it will be apparent to those skilled in the art that an infrared transmitter, an infrared receiver, and a position detection system based thereon for fully-mechanized coal mining face coal mining machine position detection have been developed to minimize or avoid problems affecting support motion control due to incorrect coal mining machine position determination.
In addition to the above technical problems, the system shown in fig. 1 also has the following three drawbacks:
(1) The infrared signal has weak anti-interference capability, and the on-site camera light supplementing lamp and other lighting equipment can influence the infrared signal, so that the receiving distance and range are reduced, and even signal misoperation can be caused;
(2) The infrared receiver has extremely low power consumption, only about 0.01w (12 v direct current power supply, 0.008A), wired power supply and communication are adopted during use, the cost is high, and the cable is easy to be damaged by coal crushing;
(3) The infrared receiver is arranged on the hydraulic support, and is manually arranged, so that the fact that the infrared receiver is right opposite to the direct infrared emitter cannot be ensured, and an installation error can be caused; meanwhile, in the coal mining process, falling coal blocks can also hit the infrared receiver, so that the receiving direction of the receiver is temporarily changed, and the working failure of the receiver is caused.
Disclosure of Invention
The invention provides a signal transmitter, a signal receiver and a position detection system, which are used for reducing or avoiding the problem that the action control of a bracket is influenced due to the position judgment error of a coal mining machine.
In a first aspect, the present invention provides a signal transmitter mounted on a coal mining machine side of a fully mechanized coal mining face, comprising: a visible light emitting unit and a combined lens unit; the visible light emission unit is used for emitting visible light exceeding a preset threshold intensity; the combined lens unit is used for controlling the emission range of the visible light and the range of the covering hydraulic support by adjusting the zoom area.
Further, the signal transmitter further includes: an infrared emission unit; the infrared emission unit is used for emitting an infrared signal so that the signal receiver can detect the position of the coal mining machine after receiving the infrared signal.
Further, the signal transmitter further comprises a wireless power supply transmitting unit; the wireless power supply transmitting unit comprises a power supply conversion module and a wireless power supply transmitting module which are electrically connected; the power supply conversion module is used for connecting direct current power supply input for converting a field power supply into a preset voltage; the wireless power supply transmitting module is used for transmitting wireless power supply energy so that the signal receiver can convert the wireless power supply energy into required power supply voltage.
Further, the signal transmitter further comprises a power adjustment unit; the power adjusting unit is electrically connected with the infrared transmitting unit and is used for adjusting the power of the infrared signal emitted by the infrared transmitting unit.
In the signal transmitter, as the visible light transmitting unit can transmit the visible light with the intensity exceeding the preset threshold, for example, the high-brightness LED strong light with the visible light is visible to the naked eye, the visible light is zoomed through the combined lens unit to adjust the zoom area, so that the transmitting range of the visible light emitted by the visible light transmitting unit and the range covering the hydraulic support are controlled, even in different coal mines or when the distance between the coal mining machine and the support is changed, the problem can be found and adjusted through the indication of the visible light, the error judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the hydraulic support linkage and the machine control are more accurate and effective.
In a second aspect, the present invention also provides a signal receiver mounted on a hydraulic support in linkage with the shearer, cooperating with a signal transmitter as claimed in any one of the preceding claims, comprising: a visible light sensing unit and a communication unit; the visible light sensing unit is used for detecting visible light emitted by the visible light emitting unit; the visible light sensing unit is electrically connected with the communication unit, and sends the visible light signal to the hydraulic support through the communication unit, so that the hydraulic support can realize detection of the position of the fully-mechanized coal mining face coal mining machine according to the emission range of the visible light and the range of the visible light covering the hydraulic support.
Further, the signal receiver also comprises an infrared light receiving unit; the infrared light receiving unit is used for detecting infrared signals sent by the infrared emission unit in the signal transmitter; the infrared light receiving unit is also electrically connected with the communication unit, and transmits the infrared signals acquired by the communication unit to the hydraulic support, so that the hydraulic support can realize the standby detection of the position of the coal mining machine on the fully mechanized mining face according to the emission range of the infrared signals and the range of the coverage hydraulic support.
Further, the signal receiver further comprises a wireless power supply receiving and converting unit;
the wireless power supply receiving and converting unit is used for converting wireless power supply energy sent by the wireless power supply transmitting module into required power supply voltage.
Further, in the signal receiver, the communication unit is a wireless communication unit; the wireless communication unit is electrically connected with the hydraulic support so that the hydraulic support can confirm the position of the fully mechanized coal mining face coal mining machine according to the signal sent by the signal receiver; the infrared light receiving unit comprises an infrared receiving module and an infrared signal processing module which are electrically connected; the infrared receiving module is used for receiving infrared signals emitted by the infrared emission unit; the infrared signal processing module is used for demodulating, modulating and encoding the infrared signal; and an infrared filter is additionally arranged on the infrared receiving module, and the infrared filter is used for enabling infrared light with the wavelength of more than 850nm to pass through.
Further, the signal receiver further comprises a alignment detection unit; the alignment detection unit is electrically connected with the visible light sensing unit; the alignment detection unit is used for judging whether the signal receiver is aligned to the signal transmitter or not through the visible light obtained through detection of the visible light sensing unit.
In the signal receiver, the visible light sensing unit can detect the visible light emitted by the visible light emitting unit and sends the obtained visible light signal to the linked hydraulic support through the communication unit, so that the hydraulic support can detect the position of the coal mining machine on the fully mechanized mining face according to the emission range of the visible light and the range of the visible light covering the hydraulic support, the erroneous judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the hydraulic support linkage and machine following control are more accurate and effective.
In a third aspect, the present invention also provides a position detection system, including: a signal transmitter as claimed in any preceding claim; and a signal receiver as claimed in any preceding claim; and a hydraulic support controller. The hydraulic support controller is arranged on the hydraulic support, and is electrically connected with the communication unit in the signal receiver and used for confirming the position of the fully-mechanized coal face coal mining machine according to the signal sent by the signal receiver.
According to the position detection system provided by the invention, through the cooperation of the signal transmitter for detecting the position of the coal mining machine on the fully mechanized mining face and any one of the signal receivers, the visible light range emitted by the signal transmitter and the range covering the hydraulic support are visible, the required range can be further adjusted according to the visible range, the erroneous judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the hydraulic support linkage and machine following control are more accurate and effective.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a related art fully mechanized coal mining face coal mining machine position detection system;
FIG. 2 is a block diagram of an embodiment of a position detection system provided by the present invention;
FIG. 3 is a block diagram of an embodiment of a signal transmitter provided by the present invention;
FIG. 4 is a block diagram of another embodiment of a signal transmitter provided by the present invention;
fig. 5 is a block diagram of an embodiment of a signal receiver provided by the present invention;
fig. 6 is a block diagram of another embodiment of a signal receiver provided by the present invention;
fig. 7 is a block diagram of another embodiment of a signal receiver according to the present invention.
Reference numerals:
1' infra-red emitter
2' infrared receiver
3' coal cutter
1. Coal cutter
2. Hydraulic support
10. Signal transmitter
101. Infrared emission unit
102. Visible light emitting unit and combined lens unit
102A visible light emission unit
102B combined lens unit
103. Power regulating unit
104. Wireless power supply transmitting unit
1041. Power conversion module
1042. Radio power supply transmitting module
20. Signal receiver
201. Infrared receiving unit
2011. Infrared receiving module
2012. Infrared signal processing module
202. Visible light sensing unit
203. Communication unit
204. Wireless power supply receiving and converting unit
205. Alignment detection unit
206. Alarm unit
30. Hydraulic support controller
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes in connection with fig. 2-7 block diagrams of an embodiment of a signal transmitter, signal receiver and position detection system for fully-mechanized coal mining face shearer position detection of the present invention.
Referring to fig. 2, fig. 2 shows a block diagram of an embodiment of the position detection system of the present invention.
In an embodiment of the fully mechanized coal mining face coal mining machine position detection system, the method comprises the following steps: a signal transmitter 10 located on the side of the fully mechanized coal mining face coal mining machine 1, a signal receiver 20 located on the side of the hydraulic support 2, and a hydraulic support controller 30. The hydraulic support controller 30 is electrically connected with the signal receiver 20, and is used for confirming the position of the fully mechanized coal mining face coal mining machine according to the signal sent by the signal receiver 20.
The signal transmitter 10 according to the embodiment of the present invention will be further described with reference to fig. 3 and 4.
Referring to fig. 3, fig. 3 is a block diagram of a signal transmitter 10 for fully-mechanized coal mining face position detection, in accordance with one embodiment of the present invention. Mounted on a fully mechanized coal mining face coal mining machine 1, a signal transmitter 10 includes: a visible light emitting unit 102A and a combination lens unit 102B; the visible light emitting unit 102A is configured to emit visible light exceeding a predetermined threshold intensity; the combined lens unit 102B is used for zooming, and the emission range of the visible light emitted by the visible light emission unit and the range covering the hydraulic support are controlled by adjusting the zooming area.
In the signal transmitter of the embodiment, since the visible light transmitting unit can transmit the visible light with the intensity exceeding the preset threshold, for example, the high-brightness LED strong light visible to the naked eye, the zoom area is adjusted by zooming the visible light through the combined lens unit, so that the transmitting range of the visible light emitted by the visible light transmitting unit and the range covering the hydraulic support are controlled, even in different coal mines or when the distance between the coal mining machine and the support is changed, the problem can be found and adjusted through the indication of the visible light, the error judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the hydraulic support linkage and the machine control are more accurate and effective.
Referring to fig. 4, there is shown a block diagram of another embodiment of a signal transmitter mounted to a fully-mechanized coal mining face coal mining machine 1, comprising: an infrared emission unit 101, a visible light emission unit, and a combination lens unit 102; the infrared emission unit 101 is configured to emit an infrared signal; the visible light emitting unit and the combination lens unit 102 function as two:
one for emitting visible light exceeding a predetermined threshold intensity;
and secondly, zooming is performed based on the combined lens unit, and the emission range of visible light emitted by the visible light emission unit and the range covering the hydraulic support are controlled by adjusting the zooming area.
In the signal transmitter of the embodiment, on the basis of the existing infrared transmitting unit 101, a visible light transmitting unit and a combined lens unit are added, and as the visible light transmitting unit can transmit visible light exceeding a preset threshold intensity, for example, high-brightness LED strong light visible to naked eyes, the combined lens unit zooms the visible light to adjust a zooming area, so that the transmitting range of the visible light emitted by the visible light transmitting unit and the range of the covering hydraulic support are controlled, and as the visible light transmitted by the visible light transmitting unit is consistent with the transmitting range of the infrared signal transmitted by the infrared transmitting unit and the range of the covering hydraulic support, the transmitting range and the covering area of the signal transmitted by the signal transmitter can be identified by means of the visible light, and particularly, the infrared light transmitted by the infrared transmitter can be simulated in an irradiation area, so that the originally invisible infrared light is visible in an irradiation area, and the function of identifying the irradiation area of the infrared transmitter on site is realized conveniently. Even in different coal mines or when the distance between the coal mining machine and the support changes, problems can be found and adjusted through the indication of visible light, and the erroneous judgment of the hydraulic support control on the position of the coal mining machine is reduced, so that the hydraulic support linkage and the machine control are more accurate and effective.
As can also be seen in fig. 4, the signal transmitter is further provided with a power conditioning unit 103; the power adjusting unit 103 is electrically connected to the infrared transmitting unit 101, and is configured to adjust the power of the infrared signal emitted by the infrared transmitting unit 101.
In the prior art, the power of infrared emission is fixed, the power adjusting knob has no similar infrared emission with the function, the power adjusting function is added in the embodiment, the power adjusting unit is just given to the user by using me, specifically, the power adjusting knob can be used for adjusting the field emission power at any time, and then the emission angle and the emission distance are changed, so that the device is suitable for various coal mines.
More preferably, in the inventive signal transmitter, a wireless power supply transmitting unit 104 is also provided. The wireless power transmission unit 104 may include a power conversion module 1041 and a wireless power transmission module 1042 that are electrically connected.
The power conversion module 1041 is used for connecting to a dc power input for converting the field power into a predetermined voltage. The wireless power transmission module 1042 is configured to transmit wireless power energy for the signal receiver to convert the wireless power energy into a desired power voltage. In one embodiment, the power conversion module 1041 is connected to a field 12v dc power input, and adopts a wireless power supply transmitting technology to transmit electric energy in a wireless manner, and then receives the electric energy by a remote mating device, so that mW level power supply with a distance of several meters can be realized at maximum, and the operation of the infrared receiving unit can be supported.
The signal receiver 20 according to one embodiment of the present invention is further described below with reference to fig. 5-7.
Referring to fig. 5, the signal receiver 20 of this embodiment is mounted on a hydraulic support that is coupled to the shearer loader, and cooperates with the signal transmitter of any one of the above, comprising: a visible light sensing unit 202 and a communication unit 203.
The visible light sensing unit 202 is configured to detect visible light emitted by the visible light emitting unit; the visible light sensing unit 202 is electrically connected with the communication unit 203, and sends the visible light signal to the hydraulic support 2 through the communication unit 203, so that the hydraulic support 2 can realize the detection of the position of the fully mechanized coal mining face coal mining machine according to the emission range of the visible light and the range of the visible light covering the hydraulic support.
In the signal receiver of the embodiment, the visible light sensing unit can detect the visible light emitted by the visible light emitting unit, and the obtained visible light signal is sent to the linked hydraulic support through the communication unit, so that the hydraulic support can detect the position of the coal mining machine on the fully mechanized mining face according to the emission range of the visible light and the range of the visible light covered by the hydraulic support, the error judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the linkage of the hydraulic support and the machine control are more accurate and effective.
Referring to fig. 6, fig. 6 is a block diagram illustrating an embodiment of a signal receiver according to the present invention.
The signal receiver 20 for detecting the position of the coal mining machine on the fully mechanized mining face of this embodiment is installed on a hydraulic support that is linked with the coal mining machine, and cooperates with the signal transmitter 10 as described above, and includes: an infrared light receiving unit 201, a visible light sensing unit 202, and a communication unit 203.
The infrared light receiving unit 201 is used for detecting infrared signals sent by the infrared sending unit and used for determining the position of the coal mining machine.
The visible light sensing unit 202 is configured to detect visible light emitted from the visible light emitting unit.
And, the infrared light receiving unit 201 and the visible light sensing unit 202 are electrically connected with the communication unit 203, and the obtained infrared signal and the visible light signal are sent to the hydraulic support through the communication unit 203, so that the hydraulic support can cover the range of the hydraulic support according to the infrared signal, the emission range of the visible light and the range of the visible light, and the auxiliary detection of the infrared signal emitted by the infrared emission unit is realized.
In the signal receiver of the present embodiment, a visible light sensing unit is added on the basis of the existing infrared light receiving unit, and a function of communicating with the visible light sensing unit is added in the communication unit. Because the visible light sensing unit can detect the visible light emitted by the visible light emitting unit, and the obtained infrared signals and visible light signals are sent to the linked hydraulic support through the communication unit, the hydraulic support can realize auxiliary detection of the infrared signals emitted by the infrared emitting unit according to the infrared signals, the visible light emitting range and the range of the visible light covering the hydraulic support, and error judgment of hydraulic support control on the position of the coal mining machine is reduced, so that the hydraulic support linkage and machine following control are more accurate and effective.
Referring to fig. 7, fig. 7 is a block diagram illustrating a signal receiver according to an embodiment of the present invention.
In this embodiment, the infrared light receiving unit 201 includes an infrared receiving module 2011 and an infrared signal processing module 2012 that are electrically connected; wherein, the infrared receiving module 2011 is configured to receive an infrared signal emitted by the infrared emitting unit; the infrared signal processing module 2012 is configured to demodulate, modulate, and encode the infrared signal; and the infrared filter is additionally arranged on the infrared receiving module 2011, and the infrared filter is used for enabling infrared light with the wavelength of more than 850nm to pass through, so that 38k infrared signals emitted by infrared emission can be detected, and lamplight interference of most visible light can be resisted.
And, the signal receiver 20 further includes: a wireless power supply receiving and converting unit 204; the wireless power receiving and converting unit 204 is configured to convert wireless power energy sent by the wireless power transmitting module into a required power voltage.
It can be seen that the wireless power supply receiving and converting unit 204 and the wireless power supply transmitting unit 104 in the signal transmitter cooperate to adopt a wireless power supply transmitting technology, weak electric energy is transmitted in an electromagnetic resonance mode, the electric energy is transmitted in a wireless mode and is received by the remote matched equipment, so that mW-level power supply with a distance of several meters can be realized at maximum, and the work of the signal receiver can be supported.
Preferably, in the signal receiver for fully-mechanized coal mining face coal mining machine position detection of the embodiment, the communication unit is a wireless communication unit; the communication unit is electrically connected with the hydraulic support, so that the hydraulic support confirms the position of the fully mechanized coal mining face coal mining machine according to the signal sent by the signal receiver. In the embodiment, the wireless communication supports the low-power-consumption communication modes of the Internet of things such as LORA, zigbee, bluetooth, 433Mhz and the like, the power consumption is extremely low, and signals are sent to a wireless receiving unit built in the hydraulic support controller, so that infrared signals are sensed.
In addition, the signal receiver 20 further comprises a alignment detection unit 205. The alignment detecting unit 205 is electrically connected with the visible light sensing unit 202; the alignment detection unit 205 is configured to determine whether the signal receiver is aligned with the signal transmitter by detecting the obtained visible light by the visible light sensing unit 202.
More preferably, the alignment detecting unit 205 is further electrically connected to an alarm unit 206, said alarm unit 206 being adapted to issue an alarm signal in case the signal receiver deviates from the signal transmitter.
In one embodiment, the visible light sensing unit 202 includes: the first photosensor, the second photosensor, the third photosensor and the fourth photosensor are arranged in the following manner: the second photosensitive device is arranged on the right side of the first photosensitive device; the third photosensitive device is arranged below the first photosensitive device; the fourth photosensitive device is arranged on the right side of the third light emitting device; the arrangement mode is used for detecting the light intensity in the horizontal left-right direction and the light intensity in the vertical up-down direction, so that the alignment detection unit can judge whether the signal receiver is aligned with the signal transmitter or not through the change of the light intensity.
More specifically, the alignment detecting unit 205 may determine whether the receiver is aligned with the transmitter by detecting the high light of the LED emitted from the signal transmitter 10, and once the direction of deviation is deviated, an alarm may be issued to remind a field worker to check and correct, to prevent the position of the receiver from being temporarily altered, so that the signal of the signal transmitter cannot be received, or to receive an abnormal signal of the transmitter.
The principle of the alignment detection is as follows: the light intensity of the horizontal direction is detected by the light sensitive devices in the left direction, the right direction and the upper direction respectively, the light intensity of the horizontal direction is detected by the light sensitive devices in the left direction and the right direction respectively, the light emitted by the high-brightness LED on the signal transmitter is supposed to move from left to right, so that the light intensity of the light detected by the left light sensitive device and the right light sensitive device is different, the light intensity of the left light is higher than that of the right light, the position of the transmitter is judged to be deviated to the left side, and when the transmitter is completely aligned with the receiver, the position of the receiver is normally aligned with the transmitter, and the light intensity detected by the left light sensitive device and the right light sensitive device is completely the same.
Therefore, when the visible light sensing unit detects the start of the emitter, the photosensitive devices in the left direction and the right direction can detect the action direction of the emitter, and the light intensity can be changed normally. As are the up and down directions.
By using this principle, it is possible to judge that the mounting direction of the receiver or the transmitter is faulty, thereby arranging for a worker to check the adjustment on site.
Through the cooperation of the signal transmitter for fully-mechanized coal face coal mining machine position detection and the signal receiver, the visible light range emitted by the signal transmitter and the range which covers the hydraulic support are visible, the required range can be further adjusted according to the visible range, the error judgment of the hydraulic support control on the position of the coal mining machine is reduced, and the hydraulic support linkage and machine following control is more accurate and effective.
In summary, it can be seen that the present invention has the following advantages:
(1) Adding a visible light emitting unit such as a highlight LED and a lens combination on the signal emitter, controlling the infrared ray signal emitting range and the highlight visible light irradiation range by adjusting a zooming area in a similar structure to a flashlight zooming mode, wherein infrared light is invisible, and simulating an infrared light coverage area by light formed by visible light;
(2) An infrared filter is added on the signal receiver, and the filter only allows infrared light with the wavelength of more than 850nm to pass through, so that the light interference of most visible light can be resisted;
(3) A wireless power supply mode is adopted, a wireless power supply transmitting end is configured on the signal transmitter, a wireless power supply receiving end is adopted on the signal receiver, weak electric energy is transmitted in an electromagnetic resonance mode, and power supply is provided for the infrared receiving unit; the receiving range of the wireless power supply is narrow, namely an infrared signal can be replaced, so that the infrared signal is a standby detection mode under the invention;
(4) Meanwhile, the wired communication between the infrared receiving unit and the hydraulic support controller is changed into a low-power consumption wireless communication mode LORA, bluetooth and the like;
(5) The signal receiver has the function of detecting whether the signal transmitter is aligned or not, and can detect the direction deviation caused by the mounting failure or the crashing after the mounting.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A signal transmitter mounted on a fully mechanized coal mining face side, comprising:
a visible light emitting unit and a combined lens unit;
the visible light emission unit is used for emitting visible light exceeding a preset threshold intensity;
the combined lens unit is used for controlling the emission range of the visible light emitted by the visible light emission unit and the range covering the hydraulic support by adjusting the zoom area.
2. The signal transmitter of claim 1, further comprising:
an infrared emission unit;
the infrared emission unit is used for emitting an infrared signal so that the signal receiver can detect the position of the coal mining machine after receiving the infrared signal.
3. The signal emitter of claim 2, wherein the signal emitter is configured to transmit the signal,
the wireless power supply transmitting unit is also included;
the wireless power supply transmitting unit comprises a power supply conversion module and a wireless power supply transmitting module which are electrically connected;
the power supply conversion module is used for connecting direct current power supply input for converting a field power supply into a preset voltage;
the wireless power supply transmitting module is used for transmitting wireless power supply energy so that the signal receiver can convert the wireless power supply energy into required power supply voltage.
4. The signal emitter of claim 2, wherein the signal emitter is configured to transmit the signal,
the power regulating unit is also included;
the power adjusting unit is electrically connected with the infrared transmitting unit and is used for adjusting the power of the infrared signal emitted by the infrared transmitting unit.
5. A signal receiver mounted to a hydraulic mount for linkage with the shearer loader, in combination with a signal transmitter as claimed in any one of claims 1 to 4, comprising:
a visible light sensing unit and a communication unit;
the visible light sensing unit is used for detecting visible light emitted by the visible light emitting unit;
the visible light sensing unit is electrically connected with the communication unit, and sends visible light to the hydraulic support through the communication unit, so that the hydraulic support can realize detection of the position of the fully-mechanized coal mining face coal mining machine according to the emission range of the visible light and the range of the visible light covering the hydraulic support.
6. The signal receiver of claim 5, further comprising:
an infrared light receiving unit;
the infrared light receiving unit is used for detecting infrared signals sent by the infrared emission unit in the signal transmitter;
the infrared light receiving unit is also electrically connected with the communication unit, and transmits the infrared signals acquired by the communication unit to the hydraulic support, so that the hydraulic support can realize the standby detection of the position of the coal mining machine on the fully mechanized mining face according to the emission range of the infrared signals and the range of the coverage hydraulic support.
7. The signal receiver of claim 5, further comprising:
a wireless power supply receiving and converting unit;
the wireless power supply receiving and converting unit is used for converting wireless power supply energy sent by the wireless power supply transmitting module into required power supply voltage.
8. The signal receiver of claim 5, wherein the signal receiver comprises a transmitter configured to transmit the signal,
the communication unit is a wireless communication unit;
the wireless communication unit is electrically connected with the hydraulic support so that the hydraulic support can confirm the position of the fully mechanized coal mining face coal mining machine according to the signal sent by the signal receiver;
the infrared light receiving unit comprises an infrared receiving module and an infrared signal processing module which are electrically connected; wherein the method comprises the steps of
The infrared receiving module is used for receiving the infrared signals emitted by the infrared emission unit; the infrared signal processing module is used for demodulating, modulating and encoding the infrared signal;
and an infrared filter is additionally arranged on the infrared receiving module, and the infrared filter is used for enabling infrared light with the wavelength of more than 850nm to pass through.
9. The signal receiver of claim 5, wherein the signal receiver comprises a transmitter configured to transmit the signal,
the device also comprises a straightening detection unit;
the alignment detection unit is electrically connected with the visible light sensing unit;
the alignment detection unit is used for judging whether the signal receiver is aligned to the signal transmitter or not through the visible light obtained through detection of the visible light sensing unit.
10. A position detection system, comprising:
a signal transmitter as claimed in any one of claims 1 to 5; and
the signal receiver of any of claims 6 to 9; and
and the hydraulic support controller is arranged on the hydraulic support, is electrically connected with the communication unit in the signal receiver and is used for confirming the position of the fully-mechanized coal face coal mining machine according to the signal sent by the signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311736989.8A CN117728848A (en) | 2023-12-15 | 2023-12-15 | Signal transmitter, signal receiver and position detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311736989.8A CN117728848A (en) | 2023-12-15 | 2023-12-15 | Signal transmitter, signal receiver and position detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117728848A true CN117728848A (en) | 2024-03-19 |
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|---|---|---|---|
| CN202311736989.8A Pending CN117728848A (en) | 2023-12-15 | 2023-12-15 | Signal transmitter, signal receiver and position detection system |
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| Country | Link |
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| CN (1) | CN117728848A (en) |
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