CN116243328A - Sensor for detecting a position of a body - Google Patents
Sensor for detecting a position of a body Download PDFInfo
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- CN116243328A CN116243328A CN202310070505.4A CN202310070505A CN116243328A CN 116243328 A CN116243328 A CN 116243328A CN 202310070505 A CN202310070505 A CN 202310070505A CN 116243328 A CN116243328 A CN 116243328A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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Abstract
The invention relates to the technical field of sensors, in particular to a distance sensor. The sensor provided in the present invention includes: the signal transmitting module is used for transmitting optical signals; the signal receiving module is used for receiving the returned optical signal; the teaching display module comprises a trigger and a display unit, wherein the display unit is configured to be capable of switching among a plurality of detection modes and displaying the signals based on the action of the trigger, and the controller is in communication connection with the signal transmitting module, the signal receiving module and the teaching display module, determines output signals based on the optical signals and the detection modes displayed by the display unit and displays the output signals on the display unit. The teaching display module is arranged in the sensor, the working mode of the sensor can be switched through the trigger connected with the controller, and the current working mode of the sensor is directly presented in a visual mode through the display unit connected with the controller, so that the teaching display module is convenient for a user to observe and use, and the use experience of the user is improved.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a distance sensor.
Background
In the prior art, general sensors for detecting distance include laser sensors, optical fiber sensors, photoelectric sensors, infrared sensors, and the like. The common distance measurement method is to detect the distance of an obstacle by utilizing the principle that the reflected intensity is different when the signal encounters different distances of the obstacle, namely, presetting an optical signal intensity threshold value of a distance point, and comparing the optical signal intensity of the reflected signal with the intensity threshold value to obtain a detection result.
In practical working applications, the sensor usually has two working modes, namely L-ON and D-ON. The L-ON mode is a light-ON mode, and sends out an ON signal when the sensor detects a specified target; the D-ON mode is a dark-ON mode, and an ON signal is sent when the sensor does not detect a specified target. The user can select different detection modes according to specific conditions such as detection requirements, detection target objects, detection environments and the like.
However, in the prior art, the sensor for detecting the distance by partially utilizing the light intensity only supports one mode, namely, is divided into an L-ON sensor or a D-ON sensor, and if the output mode needs to be switched, two different types of sensors need to be installed, so that the manufacturing cost and the management cost are increased, and the use of the sensor is inconvenient for users.
As shown in fig. 1, a sensor is also provided in the prior art, which can adjust and switch two working modes of L-ON and D-ON by rotating a change-over switch by a screwdriver. However, the operation mode of the sensor needs to be adjusted by the aid of a screwdriver, so that the convenience is low. Moreover, the user needs to observe the steering direction of the screw at a short distance to know the current working mode of the sensor, and the use experience of the user is poor.
Disclosure of Invention
In view of the above, the present invention provides a sensor. The sensor provided by the invention performs detection judgment on the detection target through the time of transmitting/reflecting the detection signal, and can simultaneously set a plurality of distance detection thresholds so as to realize the simultaneous detection of the detection targets with different heights.
In the technical scheme of the invention, a sensor is provided, which comprises: the signal transmitting module is used for transmitting optical signals; the signal receiving module is used for receiving the returned optical signal; the teaching display module comprises a trigger and a display unit, wherein the display unit is configured to be capable of switching among a plurality of detection modes and displaying the signals based on the action of the trigger, and the controller is in communication connection with the signal transmitting module, the signal receiving module and the teaching display module, determines output signals based on the optical signals and the detection modes displayed by the display unit and displays the output signals on the display unit.
According to the technical scheme, the sensor can be switched to set a plurality of working modes, and compared with a single-mode sensor, the working content which originally needs to be cooperatively carried out by a plurality of sensors can be realized through the mode switching of the single sensor, so that the production and manufacturing cost is greatly reduced, and the purchasing cost is reduced but the use experience is improved when a user uses the sensor. The sensor is provided with the teaching display module, the working mode of the sensor can be switched through the trigger connected with the controller, and the current working mode of the sensor is directly presented in a visual mode through the display unit connected with the controller, so that the sensor is convenient for a user to observe and use, and the use experience of the user is further improved.
Preferably, in the technical solution of the present invention, the trigger in the sensor is a single button.
According to the technical scheme of the invention, through the long-press, short-press and key-press times change of the trigger button, the sensor adjustment control actions such as the switching of the working mode of the sensor, the setting of the teaching point and the like can be realized, and an external tool such as a screwdriver is not needed, so that the operation is convenient and the cost is low.
Preferably, in the technical solution of the present invention, the teaching display module in the sensor sets one or more teaching points for each detection mode, each teaching point corresponds to a numerical interval of a specific distance, the controller calculates a detection value based on a time difference between the optical signal transmitted by the signal transmitting module and the optical signal received back by the signal receiving module, and compares the detection value with the numerical interval to determine the output signal.
According to the technical scheme, when the sensor detects a detection target, the signal transmitting module transmits an optical signal to the detection target, the signal receiving module receives the optical signal reflected by the detection target, and the distance between the detection target and the sensor can be accurately calculated according to the time difference between the transmitted optical signal and the received optical signal and the propagation speed of the optical signal; and a plurality of teaching points can be preset in a teaching display module of the sensor, the distance positions taught by each teaching point are different, and the sensor can detect and identify detection targets with different heights/distances simultaneously by comparing the detection result with the plurality of teaching points.
Further, in the technical scheme of the invention, the detection value detected by the sensor is a time difference value between the transmitting time and the receiving time of the optical signal or a distance value calculated based on the time difference value, and the numerical interval is a time interval or a distance interval.
According to the technical scheme of the invention, the speed of light propagation in the environment is very stable, the accuracy of teaching is higher through the time difference value of light round trip and the distance value calculated according to the time difference value, and the teaching is not influenced by external factors such as the color material of the detected object or the light brightness in the detection environment.
Preferably, in the technical solution of the present invention, the display unit in the sensor includes a detection mode display element and an output signal display element.
According to the technical scheme of the invention, the detection mode display element is used for displaying the current working mode of the sensor so that a user can directly observe the current working mode of the sensor, and the working mode of the sensor can be directly regulated according to factors such as products to be detected, detection requirements, detection environments and the like; the output signal display element is used for displaying the current detection result of the sensor, so that a user can conveniently and directly learn the detection result of the sensor, and further, the next step of judgment or adjustment can be carried out according to the detection result.
Further, in the technical scheme of the invention, if the output signal of the sensor is ON in the L-ON working mode, the output signal display element is in a lighting state; when the output signal is OFF, the output signal display element is in an OFF state.
According to the technical scheme of the invention, the sensor can display the detection result in a visual form through a simple output signal display element such as an LED lamp, the detection result can be clearly and definitely displayed, and meanwhile, the production and manufacturing cost of the sensor can be further reduced.
Preferably, in the technical solution of the present invention, the detection mode of the sensor includes an L-ON mode and a D-ON mode, and the detection mode display element is provided with one and corresponds to a switching display of L-ON and D-ON.
According to the technical scheme of the invention, the L-ON mode is a light-ON mode, and when a sensor detects a specified target, an output signal sent out is ON; the D-ON mode is a dark-ON mode, and when the sensor cannot detect a specified target, the output signal is ON; the sensor can directly display two working modes of the sensor in a visual mode through the detection mode display element, so that the sensor is convenient for a user to observe and adjust, and can comprehensively know the current working mode and detection result of the sensor by combining display signals of the output signal display element, thereby being capable of directly judging whether the sensor detects a detection target currently.
Further, in the technical scheme of the invention, the detection modes of the sensor comprise an L-ON BGS mode, a D-ON FGS mode, an L-ON FGS mode and a D-ON BGS mode, and two detection mode display elements are arranged and respectively correspond to the switching display of L-ON and D-ON and the switching display of FGS and BGS.
According to the technical scheme of the invention, the working modes of the sensor can be divided into an L-ON mode and a D-ON mode, and can be further divided into an FGS mode and a BGS mode according to the detection error requirement ON a detection target, so that 4 working modes are derived, and the different detection requirements of the sensor ON different objects and/or under different detection environments can be better met.
Drawings
FIG. 1 is a schematic diagram of a prior art sensor;
FIG. 2 is a block diagram of the internal structure of a sensor provided in an embodiment of the invention;
FIG. 3 is a schematic view of the external structure of a sensor provided in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a teaching display module provided in an embodiment of the present invention;
fig. 5 is a schematic diagram of one teaching scenario of the sensor provided in an embodiment of the present invention.
Reference numerals illustrate: the device comprises a 1-sensor, a 2-signal transmitting module, a 3-signal receiving module, a 4-teaching display module, a 41-trigger, a 42-display unit, a 421-detection mode display element, a 422-output signal display element and a 5-controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Fig. 2 is an internal block diagram of a sensor provided in an embodiment of the present invention.
As shown in fig. 2, in an embodiment of the present invention, there is provided a sensor 1, the sensor 1 including: the signal transmitting module 2 is used for transmitting optical signals and is in communication connection with the controller 5; the signal receiving module 3 is used for receiving the returned optical signal and is in communication connection with the controller 5;
fig. 3 is a schematic view of the external structure of a sensor provided in an embodiment of the present invention.
As shown in fig. 3, in the embodiment of the present invention, the teaching display module 4 of the sensor 1 includes a trigger 41 and a display unit 42, and the display unit 42 is configured to be switchable between a plurality of detection modes and to display the same based on the operation of the trigger 41;
in the embodiment of the present invention, the sensor 1 generally has two modes of operation, L-ON and D-ON. The L-ON mode is a light-ON mode, namely, when the sensor 1 detects a specified target, the corresponding output signal is in an ON state; the D-ON mode is a dark-ON mode, and when the sensor 1 does not detect the specified target, the corresponding output signal is in an ON state, and the sensor 1 can be directly switched between the two operation modes by the operation of the trigger 41.
Fig. 4 is a schematic diagram of a teaching display module provided in an embodiment of the present invention.
Specifically, as shown in fig. 4, in the embodiment of the present invention, the display unit 42 in the sensor 1 includes a detection mode display element 421 and an output signal display element 422.
Further, in the embodiment of the present invention, the detection modes of the sensor 1 include an L-ON BGS mode, a D-ON FGS mode, an L-ON FGS mode, and a D-ON BGS mode, and referring to fig. 4, two detection mode display elements 421 are provided corresponding to the above 4 modes, respectively corresponding to the switching display of L-ON and D-ON and the switching display of FGS and BGS.
The detection mode display element 421 is configured to display a current operation mode of the sensor 1, for example, when the sensor 1 is in the L-ON mode, the detection mode display element 421a is in a lighting state; when the sensor 1 is in the D-ON mode, the detection mode display element 421a is in an off state; when the sensor 1 is in the BGS mode, the detection mode display element 421b is in a lit state; when the sensor 1 is in the FGS mode, the detection mode display element 421b is turned off. In fig. 4, when the display unit 42 is blank filled, the display unit 42 is turned on, and when the display unit 42 is hatched filled, the display unit 42 is turned off.
The L-ON BGS mode, the D-ON FGS mode, the L-ON FGS mode and the D-ON BGS mode can be derived according to the L-ON mode, the D-ON mode and the FGS mode, and 4 working modes of the L-ON FGS mode and the D-ON BGS mode can be derived so as to better meet different detection requirements of the sensor 1 ON different objects and/or under different detection environments.
When the sensor 1 is in the L-ON BGS mode, both 421a and 421b are in a lighting state; when the sensor 1 is in the D-ON FGS mode, both 421a and 421b are in an off state; when the sensor 1 is in the L-ON FGS mode, 421a is in an ON state and 421b is in an off state; when the sensor 1 is in the D-ON BGS mode, 421a is in an off state and 421b is in an ON state; so that the user can directly observe and directly adjust the working mode of the sensor 1 according to the factors of the product to be detected, the detection requirement, the detection environment and the like.
The output signal display element 422 is configured to display an output signal obtained according to the current detection result and the working mode of the sensor 1, so that a user can directly learn the output result of the sensor 1, and further perform a next step of judgment or adjustment according to the output result. Preferably, in the present embodiment, when the output signal of the sensor 1 is ON, the output signal display element 422 is in a lit state; when the output signal is OFF, the output signal display element 422 is turned OFF.
In the embodiment of the present invention, the display unit 42 in the sensor 1 is formed of LED lamps, and the display unit 42 is formed of LED lamps or the like, so that the detection result is visually presented, and the detection result can be clearly and clearly displayed, and the manufacturing cost of the sensor 1 can be further reduced.
Preferably, in the embodiment of the present invention, the trigger 41 in the teaching display module 4 of the sensor 1 is a single button. When the operation mode of the sensor 1 is switched, the trigger 41 is first pressed for a long time (e.g., 8 s), so that the sensor 1 enters the operation mode setting state, then the 1 st time of pressing is short to enter the L-ON BGS mode, the detection mode display element 421a, the detection mode display element 421b and the output signal display element 422 in the L-ON BGS mode are subjected to the same-flash-2 nd time of pressing to enter the D-ON FGS mode, only the output signal display element 422 in the D-ON FGS mode is subjected to the flash-3 rd time of pressing to enter the L-ON FGS mode, the detection mode display element 421a and the output signal display element 422 in the L-ON FGS mode are subjected to the same-flash-4 th time of pressing to enter the D-ON BGS mode, the detection mode display element 421b and the output signal display element 422 in the D-ON BGS mode are subjected to the same-flash-5 th time of pressing to return to the L-ON BGS mode again, and the trigger 41 is sequentially subjected to the long time (e.g., 2 s) after one mode is selected. And in combination with the display signals of the detection mode display element 421 in the sensor 1, which correspond to the switching display of the L-ON and the D-ON and the switching display of the FGS and the BGS respectively, a user can conveniently complete the working mode setting of the sensor 1, and the setting process is completely visualized, so that the observation is convenient, and the error is not easy. After the setting of the 4 detection modes is completed, the sensor 1 automatically enters a measurement mode for detecting an object, and the ON/OFF detection of the teaching point can be changed by teaching the set distance at any time under each distance.
In the embodiment of the present invention, by changing the trigger 41, i.e., the long-press, short-press, and number of key presses of a single button, it is possible to realize the switching of the operation mode of the sensor 1 without using an external tool such as a screwdriver, which is convenient to operate and low in cost.
On the basis of the above-mentioned switching function of the working mode of the sensor 1, the user may also teach through the trigger 41, for example, set, correct and delete a plurality of teaching points, so that the sensor 1 can flexibly and conveniently detect products with different heights and different types, so as to improve the applicability of the sensor 1.
In the embodiment of the present invention, the trigger 41 may be a simple control element such as a knob or a switch, so as to perform other control operations such as setting of a transmission operation mode, teaching of a teaching point, and a visual instruction on the sensor 1, so that an external control unit of the sensor 1 is low in cost and convenient to operate.
In the embodiment of the present invention, the sensor 1 further includes a controller 5, and the controller 5 is communicatively connected to the signal transmitting module 2, the signal receiving module 3, and the teaching display module 4, and receives the detection signals of the signal transmitting module 2 and the signal receiving module 3, and the teaching display signal of the teaching display module 4, respectively, determines an output signal based on the detection result of the optical signal and the detection mode displayed by the display unit 42, that is, the current operation mode of the sensor 1, and displays the output signal on the display unit 42.
Preferably, in the embodiment of the present invention, the teaching display module 4 in the sensor 1 sets one or more teaching points for each detection mode, each teaching point corresponding to a specific numerical value section, and the controller 5 calculates a detection value based on a time difference between the optical signal emitted by the signal emitting module 2 and the optical signal received back by the signal receiving module 3, and compares the detection value with the numerical value section to determine an output signal.
Specifically, when the sensor 1 in this embodiment detects a detection target, the signal transmitting module 2 transmits an optical signal to the detection target, and the signal receiving module 3 receives the optical signal reflected by the detection target, so that the distance value between the detection target and the sensor 1 can be accurately calculated according to the time difference between the transmission time and the receiving time of the optical signal and the propagation speed of the optical signal.
Fig. 5 is a schematic diagram of one teaching scenario of the sensor provided in an embodiment of the present invention.
As shown in fig. 5, in the embodiment of the present invention, when teaching points, the teaching display module 4 in the sensor 1 may perform teaching operations for multiple times, that is, the signal transmitting module 2 transmits an optical signal to the detection target (product to be detected), the signal receiving module 3 receives the optical signal reflected by the detection target, calculates a time difference between the transmitted optical signal and the received optical signal, compares the time difference calculated according to the optical signal with a preset value interval, and if both are within the preset value interval, that is, the teaching points are successfully set, performs buffer processing of the distance from the time difference as the distance threshold of the current teaching point. If the data is not in the numerical range, the data is abnormal data and needs to be taught again.
In the embodiment of the present invention, when the sensor 1 detects the detection target, one or a plurality of teaching points can be preset in the teaching display module 4, the distance positions taught by each teaching point are different, and the sensor 1 can detect and identify the detection target with different heights/distances simultaneously by comparing the detection result with the plurality of teaching points.
After the sensor 1 completes the teaching action of the teaching points, object detection work can be performed based on one or more preset teaching points, and a detection result is output by combining the working mode of the sensor 1.
A distance threshold and a numerical interval corresponding to each teaching point. When the sensor 1 detects an object, a detection value between the detected object and the sensor 1 is calculated according to a time difference value between the time of the optical signal transmitted by the signal transmitting module 2 and the time of the returned optical signal received by the signal receiving module 3. If the detected value obtained by calculation is in a numerical interval corresponding to the teaching point, namely the sensor 1 detects the target object in a specified distance range, the detection result is in an OK state; if the detected value obtained by calculation is not in the numerical value interval corresponding to the teaching point, that is, the sensor 1 does not detect the target object in the specified distance range, the detection result is an NG state.
Wherein the numerical value interval corresponding to the teaching point is a numerical value interval selected based on a preset distance threshold corresponding to the teaching point, and if the distance threshold corresponding to the teaching point is d 1 The numerical interval is (0, d) 1 ]Or [ d ] 1 Infinity), or with a distance threshold d 1 The difference therebetween is smaller than a predetermined value or the like, and is not limited herein.
If the sensor 1 is in the L-ON mode, i.e., the light-ON mode, when the sensor 1 detects a target object within a specified distance range, i.e., the detection result is in an OK state, the output signal sent by the controller 5 is ON, and the output signal display element 422 is in a lit state; when the sensor 1 does not detect the target object within the specified distance range, namely, the detection result is an NG state; the output signal from the controller 5 is OFF, and the output signal display element 422 is turned OFF.
Conversely, if the sensor 1 is in the D-ON mode, i.e., the dark-ON mode, and the sensor 1 detects the target object within the specified distance range, i.e., the detection result is in the OK state, the output signal sent by the controller 5 is OFF, and the output signal display element 422 is in the OFF state; when the sensor 1 does not detect the target object within the specified distance range, namely, the detection result is an NG state; the output signal from the controller 5 is ON, and the output signal display element 422 is in an ON state.
Further, in the embodiment of the present invention, the detection value in the sensor 1 may not only be the distance value calculated based on the time difference, but also may directly select the time difference between the transmitting time and the receiving time of the optical signal, and the corresponding numerical interval corresponding to each teaching point may be a distance interval or a time interval. Because the light propagation speed in the environment is very stable, the teaching accuracy is higher through the time difference value of the light back and forth and the distance value calculated according to the time difference value, and the teaching accuracy is not influenced by external factors such as the color material of the detected object or the light brightness in the detection environment.
Referring to FIG. 5, in the embodiment of the present invention, the sensor 1 may set a certain error range based on the distance threshold of the teaching point, i.e. the distance threshold is d as in FIG. 5 1 An error range of + -a% is set on the basis of (a). It should be noted that the teaching point corresponds to the distance threshold d 1 The error range + -a% of the detection device can be automatically adjusted according to different detection products, environments and detection requirements, and the detection device is not limited.
Specifically, the detection error difference of the detection target is divided into an FGS mode and a BGS mode, wherein the FGS mode is a foreground suppression mode (Foreground suppression), and the distance threshold is d after setting the error range smaller than a distance threshold such as-a 1 -a％d 1 The method comprises the steps of carrying out a first treatment on the surface of the The BGS mode is a background suppression mode (Background Suppression), and the distance threshold value d can be obtained by setting the error range to be larger than the distance threshold value such as +a% 1 +a％d 1 。
In the embodiment of the invention, the sensor 1 can be switched to set a plurality of working modes, and compared with the working content of a single-mode sensor which originally needs to be cooperatively carried out by a plurality of sensors, the mode switching of the single sensor can be realized, so that the production and manufacturing cost is greatly reduced, and the purchasing cost is reduced but the use experience is improved when a user uses the sensor. The teaching display module 4 is arranged in the sensor 1, the working mode of the sensor 1 can be directly switched through the trigger 41 connected with the controller 5, and the current working mode of the sensor 1 is directly presented in a visual mode through the display unit 42 connected with the controller 5, so that the sensor is convenient for a user to observe and use, and the use experience of the user is further improved.
Further, in combination with the arrangement of a plurality of teaching points in the teaching display module 4, the sensor 1 is capable of detecting objects within and only within a specified distance range when in the L-ON mode; when the sensor 1 is in the D-ON mode, the specified distance range can be eliminated, and an object not within the specified distance range can be detected.
The technical solution of the present invention has been described so far with reference to the accompanying drawings. However, it will be readily appreciated by those skilled in the art that the scope of the present invention is not limited to the above-described specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (8)
1. A sensor, comprising:
the signal transmitting module is used for transmitting optical signals;
the signal receiving module is used for receiving the returned optical signal;
a teaching display module including a trigger and a display unit configured to be switchable between a plurality of detection modes and display based on an operation of the trigger,
and the controller is in communication connection with the signal transmitting module, the signal receiving module and the teaching display module, determines an output signal based on the optical signal and a detection mode displayed by the display unit, and displays the output signal on the display unit.
2. The sensor of claim 1, wherein the trigger is a single button.
3. The sensor of claim 1, wherein the teaching display module sets one or more teaching points for each detection mode, each teaching point corresponding to a particular numerical interval,
the controller calculates a detection value based on a time difference between the optical signal transmitted by the signal transmitting module and the optical signal received back by the signal receiving module, and compares the detection value with the numerical value interval to determine an output signal.
4. A sensor according to claim 3, wherein the detection value is a time difference between a transmission time and a reception time of the optical signal or a distance value calculated based on the time difference, and the numerical interval is a time interval or a distance interval.
5. The sensor of any one of claims 1-4, wherein the display unit comprises a detection mode display element and an output signal display element.
6. The sensor of claim 5, wherein the output signal display element is in an illuminated state when the output signal is ON; when the output signal is OFF, the output signal display element is in an OFF state.
7. The sensor of claim 5, wherein the detection mode includes an L-ON mode and a D-ON mode, and the detection mode display element is provided with one and corresponds to a switching display of L-ON and D-ON.
8. The sensor of claim 5, wherein the detection mode includes an L-ON BGS mode, a D-ON FGS mode, an L-ON FGS mode, and a D-ON BGS mode, and the detection mode display element is provided with two display elements corresponding to the switching display of L-ON and D-ON and the switching display of FGS and BGS, respectively.
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| CN202310070505.4A CN116243328A (en) | 2023-01-20 | 2023-01-20 | Sensor for detecting a position of a body |
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| CN116087968A (en) * | 2023-01-20 | 2023-05-09 | 松下神视电子（苏州）有限公司 | Sensor for detecting a position of a body |
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