CN106556875A - A kind of method of detection means and its detection time writer - Google Patents
A kind of method of detection means and its detection time writer Download PDFInfo
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- CN106556875A CN106556875A CN201611060947.7A CN201611060947A CN106556875A CN 106556875 A CN106556875 A CN 106556875A CN 201611060947 A CN201611060947 A CN 201611060947A CN 106556875 A CN106556875 A CN 106556875A
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- 238000000034 method Methods 0.000 title claims abstract description 24
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
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Abstract
The invention provides a kind of method of detection means and its detection time writer, wherein, the detection means includes：Power supply radiating circuit, signal deteching circuit, signal response circuit and control module；The control module, provides electromagnetic field to designated area for when the first trigger is received, controlling the power supply radiating circuit；The signal deteching circuit, for detecting the electromagnetic wave of the designated area；The signal response circuit, the electromagnetic wave for being detected according to the signal deteching circuit determine that the designated area whether there is time writer.By technical scheme, it is capable of achieving to whether there is time writer in detection designated area.
Description
Technical Field
The invention relates to the technical field of electronic information, in particular to a detection device and a method for detecting an electromagnetic pen by using the same.
Background
With the continuous development of electronic information technology and the continuous improvement of economic level, a great number of self-service terminals which are applied to different industries and have different functions are increased, so that users can perform online transaction business through the corresponding self-service terminals.
At present, a self-service terminal is usually connected with an electromagnetic pen configured correspondingly through a cable, the electromagnetic pen may be lost due to artificial damage or other reasons, and after the electromagnetic pen is lost, a user cannot perform signature authentication on the self-service terminal, so that how to detect whether the electromagnetic pen exists in a designated area becomes an urgent problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a detection device and a method for detecting an electromagnetic pen, which can detect whether the electromagnetic pen exists in a designated area.
In a first aspect, the present invention provides a detection apparatus comprising:
the device comprises a power supply transmitting circuit, a signal detection circuit, a signal response circuit and a control module; wherein,
the control module is used for controlling the power supply transmitting circuit to provide an electromagnetic field to a specified area when receiving a first trigger signal;
the signal detection circuit is used for detecting the electromagnetic wave of the designated area;
the signal response circuit is used for determining whether the electromagnetic pen exists in the designated area or not according to the electromagnetic wave detected by the signal detection circuit.
Preferably, the first and second electrodes are formed of a metal,
the signal response circuit comprises a first judgment unit, a signal analysis unit, a second judgment unit and a signal sending unit; wherein.
The first judging unit is used for judging whether the signal detection circuit receives electromagnetic waves sent by an external designated area or not, and if so, the signal analysis unit is triggered; otherwise, triggering the signal sending unit;
the signal analysis unit is used for analyzing the electromagnetic wave detected by the signal detection circuit under the triggering of the first judgment unit so as to acquire the frequency of the electromagnetic wave;
the second judging unit is used for judging whether the frequency acquired by the signal analyzing unit is within a preset frequency threshold value, and if so, determining that an electromagnetic pen exists in the designated area; otherwise, triggering the signal sending unit;
the signal sending unit is configured to send alarm information to an external alarm system under the trigger of the first determining unit or the second determining unit, so that the external alarm system performs an alarm.
Preferably, the first and second electrodes are formed of a metal,
further comprising: an alarm device; wherein,
the signal sending unit is further configured to send alarm information to the alarm device under the trigger of the first determining unit or the second determining unit;
and the warning device is used for warning when the warning information sent by the signal sending unit is received.
Preferably, the first and second electrodes are formed of a metal,
the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
Preferably, the first and second electrodes are formed of a metal,
the control module is further used for controlling the power supply transmitting circuit to stop providing the electromagnetic field to the external designated area when receiving a second trigger signal.
In a second aspect, an embodiment of the present invention provides a method for detecting an electromagnetic pen by using the detection apparatus described in any one of the above first aspects, including:
when the control module receives a first trigger signal, the control module controls the power supply transmitting circuit to provide an electromagnetic field for the designated area;
detecting the electromagnetic wave of the designated area by using a signal detection circuit;
and utilizing a signal response circuit to determine whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
Preferably, the first and second electrodes are formed of a metal,
the determining, by the signal response circuit, whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit includes:
judging whether the signal detection circuit receives electromagnetic waves emitted by an external specified area by using a first judgment unit, and if so, executing the step A1; otherwise, go to step A3;
a1: analyzing the electromagnetic wave detected by the signal detection circuit by using a signal analysis unit to obtain the frequency of the electromagnetic wave;
a2: judging whether the frequency acquired by the signal analysis unit is within a preset frequency threshold value by using a second judgment unit, and if so, determining that an electromagnetic pen exists in the designated area; otherwise, go to step A3;
a3: and sending alarm information to an external alarm system by using the signal sending unit so as to enable the external alarm system to alarm.
Preferably, the first and second electrodes are formed of a metal,
the a3 further comprises: sending alarm information to an alarm device by using a signal sending unit;
further comprising:
and when the alarm device receives the alarm information sent by the signal sending unit, alarming.
Preferably, the first and second electrodes are formed of a metal,
the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
Preferably, the first and second electrodes are formed of a metal,
further comprising:
and controlling the power supply transmitting circuit to stop supplying the electromagnetic field to the external designated area by using the control module when receiving the second trigger signal.
The embodiment of the invention provides a detection device and a method for detecting an electromagnetic pen thereof, wherein in the detection device, a control module controls a power supply transmitting circuit to provide an electromagnetic field for a specified area when receiving a first trigger signal, and if the electromagnetic pen exists in the specified area, the electromagnetic pen can charge the electromagnetic pen according to the electromagnetic field provided by the power supply transmitting circuit and send out corresponding electromagnetic waves; meanwhile, the signal detection circuit can detect the electromagnetic wave in the designated area, and the signal response circuit can determine whether the electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another detecting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another detecting device according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for detecting an electromagnetic pen by using a detecting device according to an embodiment of the present invention;
fig. 5 is a flowchart of another method for detecting an electromagnetic pen by using a detection device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a detection apparatus, including:
a power supply transmitting circuit 101, a signal detection circuit 102, a signal response circuit 103 and a control module 104; wherein,
the control module 104 is configured to control the power transmitting circuit 101 to provide an electromagnetic field to a specified area when receiving a first trigger signal;
the signal detection circuit 102 is configured to detect an electromagnetic wave in the designated area;
the signal response circuit 103 is configured to determine whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
In the above embodiment of the present invention, when receiving the first trigger signal, the control module controls the power transmitting circuit to provide an electromagnetic field to the designated area, and if an electromagnetic pen exists in the designated area, the electromagnetic pen can charge itself according to the electromagnetic field provided by the power transmitting circuit and send out a corresponding electromagnetic wave; meanwhile, the signal detection circuit can detect the electromagnetic wave in the designated area, and the signal response circuit can determine whether the electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
In the embodiment of the invention, when the user normally takes out the electromagnetic pen from the designated area to match with the corresponding self-service terminal to complete the corresponding service, whether the electromagnetic pen exists in the designated area or not does not need to be detected; therefore, the control module controls the power supply transmitting circuit to provide the electromagnetic field to the specified area only after receiving the first trigger signal so as to detect whether the electromagnetic pen exists in the specified area.
The signal response circuit can determine whether the electromagnetic pen exists in the designated area or not by analyzing the frequency of the electromagnetic wave received by the signal detection circuit; specifically, as shown in fig. 2, in an embodiment of the present invention, the signal response circuit 103 includes a first determining unit 1031, a signal analyzing unit 1032, a second determining unit 1033, and a signal transmitting unit 1034; wherein.
The first determining unit 1031 is configured to determine whether the signal detecting circuit 102 receives an electromagnetic wave emitted from an external designated area, and if so, trigger the signal analyzing unit 1032; otherwise, the signal sending unit 1034 is triggered;
the signal analyzing unit 1032 is configured to analyze the electromagnetic wave detected by the signal detecting circuit 102 under the trigger of the first determining unit 1031 to obtain a frequency of the electromagnetic wave;
the second determining unit 1033 is configured to determine whether the frequency obtained by the signal analyzing unit 1032 is within a preset frequency threshold, and if so, determine that an electromagnetic pen exists in the designated area; otherwise, the signal sending unit 1034 is triggered;
the signal sending unit 1034 is configured to send alarm information to an external alarm system under the triggering of the first determining unit 1031 or the second determining unit 1033, so that the external alarm system performs an alarm.
In the above embodiment of the present invention, after the control module controls the designated area of the power transmission module box to provide the electromagnetic field, if the electromagnetic pen exists in the designated area, the electromagnetic pen can charge itself under the electromagnetic field provided by the power transmission circuit, and emit the electromagnetic wave with the corresponding frequency. Therefore, in the first aspect, if the first determining unit determines that the signal detecting circuit does not receive the electromagnetic wave emitted from the designated area, it indicates that there is no electromagnetic pen in the designated area or the electromagnetic pen in the designated area has failed, and at this time, the signal sending unit may be triggered to send the alarm information to the external alarm system. In a second aspect, when the first determination unit receives the electromagnetic wave emitted from the designated area, it indicates that there is an apparatus capable of emitting the electromagnetic wave in the designated area, but it cannot be determined that the apparatus emitting the electromagnetic wave in the designated area is an electromagnetic pen, so that, in order to accurately determine whether the electromagnetic wave received by the signal receiving circuit is the electromagnetic wave emitted by the electromagnetic pen, the electromagnetic wave received by the signal receiving circuit can be analyzed by the signal analyzing unit to obtain the frequency thereof, and then the second determination unit determines whether the frequency obtained by the signal analyzing unit is within the preset threshold value, if the frequency is within the preset threshold value, it indicates that the electromagnetic wave detected by the signal detection circuit is the electromagnetic wave generated by the electromagnetic pen, it can be determined that there is an electromagnetic pen in the designated area, otherwise, it indicates that the electromagnetic wave detected by the signal detection circuit is not the electromagnetic wave emitted by the, that is, no electromagnetic pen exists in the designated area, or the electromagnetic pen in the designated area fails; at this time, the signal sending unit may also be triggered to send alarm information to an external alarm system.
Specifically, in an embodiment of the present invention, the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
In the embodiment of the invention, the signal sending circuit sends the alarm information to the external alarm system under the trigger of the first judging unit or the second judging unit, the external alarm system gives an alarm when receiving the alarm information, and is convenient for informing a worker that an electromagnetic pen in a set area is likely to be lost or failed, so that the worker can timely maintain the electromagnetic pen in a specified area, and the self-service terminal equipped with the electromagnetic pen cannot continuously realize corresponding functions when the electromagnetic pen is lost or failed (for example, in order to improve the safety of online transaction, a user can write a signature in the specified area of the self-service terminal by using the electromagnetic pen configured by the self-service terminal, and the self-service terminal simulates and verifies the signature handwriting of the user to perform signature authentication on the identity of the user), and the usability of the self-service terminal can be improved.
Further, in order to prompt the user to play back the used electromagnetic pen to the designated area, as shown in fig. 3, in an embodiment of the present invention, the method further includes: an alarm device 301; wherein,
the signal sending unit 1034 is further configured to send alarm information to the alarm apparatus 301 under the triggering of the first determining unit 1031 or the second determining unit 1033;
the warning device 301 is configured to perform a warning when receiving the warning information sent by the signal sending unit.
Further, since the electromagnetic pen is usually used in cooperation with the electromagnetic screen disposed in the self-service terminal, when the self-service terminal needs to perform corresponding service processing through the disposed electromagnetic screen, in order to prevent the electromagnetic field provided by the power transmitting circuit from interfering with the electromagnetic field generated by the electromagnetic screen in the self-service terminal, in an embodiment of the present invention, the control module 104 is further configured to control the power transmitting circuit 101 to stop providing the electromagnetic field to the external designated area when receiving the second trigger signal.
As shown in fig. 4, an embodiment of the present invention provides a method for detecting an electromagnetic pen by using a detection apparatus provided in any embodiment of the present invention, including:
step 401, controlling a power supply transmitting circuit to provide an electromagnetic field to a specified area by using a control module when receiving a first trigger signal;
step 402, detecting the electromagnetic wave of the designated area by using a signal detection circuit;
and step 403, determining whether an electromagnetic pen exists in the designated area or not by using a signal response circuit according to the electromagnetic wave detected by the signal detection circuit.
In an embodiment of the present invention, the determining, by the signal response circuit, whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit includes:
judging whether the signal detection circuit receives electromagnetic waves emitted by an external specified area by using a first judgment unit, and if so, executing the step A1; otherwise, go to step A3;
a1: analyzing the electromagnetic wave detected by the signal detection circuit by using a signal analysis unit to obtain the frequency of the electromagnetic wave;
a2: judging whether the frequency acquired by the signal analysis unit is within a preset frequency threshold value by using a second judgment unit, and if so, determining that an electromagnetic pen exists in the designated area; otherwise, go to step A3;
a3: and sending alarm information to an external alarm system by using the signal sending unit so as to enable the external alarm system to alarm.
In an embodiment of the present invention, the a3 further includes: sending alarm information to an alarm device by using a signal sending unit;
then, the method further comprises: and when the alarm device receives the alarm information sent by the signal sending unit, alarming.
In an embodiment of the present invention, the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
In one embodiment of the present invention, the method further comprises: and controlling the power supply transmitting circuit to stop supplying the electromagnetic field to the external designated area by using the control module when receiving the second trigger signal.
In order to more clearly illustrate the technical solutions and advantages of the present invention, referring to fig. 1, fig. 2 and fig. 3, the following takes as an example that the detection device provided by the embodiment of the present invention is installed on an external self-service terminal device, and detects an electromagnetic pen configured on the self-service terminal device, as shown in fig. 5, the following steps may be included:
step 501, installing the detection device on a self-service terminal at a designated place, and connecting the detection device with an external alarm system.
Here, a designated area is generally provided on the self-service terminal to store the electromagnetic pen.
Step 502, the user takes the electromagnetic pen away from the designated area on the self-service terminal, and performs the corresponding service by using the electromagnetic pen and the electromagnetic screen in the self-service terminal to cooperate.
For example, an electromagnetic screen in the self-service terminal can provide an electromagnetic field for a certain area, when a user controls an electromagnetic pen to move in the area, the self-service terminal can capture the movement track of the electromagnetic pen in the area through the electromagnetic screen, so that input information written in the area, such as user signature and transaction information, is acquired, and then the signature handwriting of the user is simulated and verified, so that the identity of the user is authenticated, and after the authentication is passed, corresponding services can be continuously executed.
It should be understood that, when the electromagnetic screen of the self-service terminal is in the working state, the self-service terminal may output the second trigger signal to the detection device, so that the control module in the detection device may control the power transmitting circuit to stop providing the electromagnetic field to the designated area, and avoid that the electromagnetic field provided by the power transmitting circuit and the electromagnetic field provided by the electromagnetic screen interfere with each other, so that the electromagnetic screen of the self-service terminal cannot work normally.
Step 503, after the user executes the corresponding service through the self-service terminal, the self-service terminal sends a first trigger signal to the control module of the detection device.
And step 504, after receiving the first trigger signal, the control module controls the power supply transmitting circuit to provide an electromagnetic field to the specified area.
In step 505, the signal detection circuit detects electromagnetic waves in the designated area.
Here, after the user uses the electromagnetic pen, the electromagnetic pen needs to be played back to a designated area on the self-service terminal for storing the electromagnetic pen, and if the electromagnetic pen is played back to the designated area by the user, the electromagnetic pen located in the designated area can charge itself under the action of the electromagnetic field provided by the power transmitting circuit and generate electromagnetic waves. Of course, if the user does not replay the electromagnetic pen to the designated area after using the electromagnetic pen, the signal detection circuit may not detect the electromagnetic wave in the designated area or detect the electromagnetic wave generated by the non-electromagnetic pen in the designated area.
Step 506, the first judging unit of the signal response circuit judges whether the signal detection circuit receives the electromagnetic wave, if so, step 507 is executed; otherwise, step 509 is performed.
In the embodiment of the invention, if the first judging unit of the signal response circuit judges that the signal detection circuit does not detect the electromagnetic wave, the situation that a user does not replay the taken electromagnetic pen to the specified area or the electromagnetic pen replayed to the specified area has a fault is shown; at this point, step 509 may be performed.
In step 507, the signal analyzing circuit of the signal response circuit analyzes the electromagnetic wave detected by the signal detection circuit to obtain the frequency of the electromagnetic wave.
Step 508, the second judging unit of the signal response circuit judges whether the frequency obtained by the signal analyzing circuit is within a preset frequency threshold, if so, the current flow is ended; otherwise, step 509 is performed.
In an embodiment of the present invention, the preset frequency threshold may include not less than 120KHz and not more than 170 KHz.
In the embodiment of the invention, the frequency of the electromagnetic wave generated by the electromagnetic pen is usually between 120KHz and 170KHz, so that the preset frequency threshold value can be set to be not less than 120KHz and not more than 170 KHz. Of course, in a specific service scenario, the preset frequency threshold may also be set reasonably according to the model or type of the electromagnetic pen actually detected by the detection device.
In the embodiment of the invention, if the frequency acquired by analyzing the electromagnetic wave by the signal analyzing unit is within the preset frequency threshold, the electromagnetic wave detected by the signal detecting circuit is the electromagnetic wave generated by the electromagnetic pen, and it can be determined that the electromagnetic pen has been played back to the specified area by the user. Otherwise, it indicates that the electromagnetic wave detected by the signal detection circuit is not the electromagnetic wave emitted by the electromagnetic pen, that is, the electromagnetic pen does not exist in the designated area, or the electromagnetic pen in the designated area fails. At this point, step 509 may be performed.
In step 509, the signal transmitting unit of the signal response circuit transmits an alarm signal to the alarm device and the external alarm system, respectively.
In step 510, the alarm device of the detection device alarms when receiving the alarm signal.
Here, when the alarm device of the detection device gives an alarm, the user may be prompted to play back the used electromagnetic pen to the designated area of the terminal device.
It should be understood that the external alarm system should give an alarm when receiving the alarm information, and conveniently notify the staff that the electromagnetic pen in the designated area may be lost or failed, so that the staff may maintain the electromagnetic pen in the designated area in time, and it is prevented that the self-service terminal equipped with the electromagnetic pen cannot continuously implement the corresponding function when the electromagnetic pen is lost or failed (for example, in order to improve the security of online transaction, a user may write a signature in the designated area of the self-service terminal by using the electromagnetic pen configured by the self-service terminal, and the self-service terminal simulates and verifies the signature handwriting of the user to perform signature authentication on the identity of the user), so that the usability of the self-service terminal can be improved.
In summary, the embodiments of the present invention have at least the following advantages:
1. in one embodiment of the invention, when receiving a first trigger signal, a control module controls a power supply transmitting circuit to provide an electromagnetic field to a designated area, and if an electromagnetic pen exists in the designated area, the electromagnetic pen can charge the electromagnetic pen according to the electromagnetic field provided by the power supply transmitting circuit and send out corresponding electromagnetic waves; meanwhile, the signal detection circuit can detect the electromagnetic wave in the designated area, and the signal response circuit can determine whether the electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
2. In an embodiment of the invention, the external alarm system should alarm when receiving the alarm information, so that the staff is conveniently informed that the electromagnetic pen in the designated area is likely to be lost or failed, the staff can timely maintain the electromagnetic pen in the designated area, the self-service terminal equipped with the electromagnetic pen is prevented from being incapable of continuously realizing corresponding functions when the electromagnetic pen is lost or failed, and the usability of the self-service terminal can be improved.
3. In an embodiment of the invention, the alarm device in the detection device gives an alarm when receiving the alarm information, and can prompt a user to replay the used electromagnetic pen to a specified area.
4. In an embodiment of the invention, the control module controls the power supply transmitting circuit to provide an electromagnetic field to the external designated area when receiving the first trigger signal, and controls the power supply transmitting circuit to stop providing the electromagnetic field to the external designated area when receiving the second trigger signal, so that the power supply transmitting circuit does not generate a corresponding electromagnetic field when a user performs corresponding services by using the electromagnetic pen to work in cooperation with the electromagnetic screen of the external self-service terminal, and the electromagnetic field generated by the power supply transmitting circuit and the electromagnetic field generated by the electromagnetic screen in the external self-service terminal are prevented from interfering with each other.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the inclusion of an element by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A detection device, comprising:
the device comprises a power supply transmitting circuit, a signal detection circuit, a signal response circuit and a control module; wherein,
the control module is used for controlling the power supply transmitting circuit to provide an electromagnetic field to a specified area when receiving a first trigger signal;
the signal detection circuit is used for detecting the electromagnetic wave of the designated area;
the signal response circuit is used for determining whether the electromagnetic pen exists in the designated area or not according to the electromagnetic wave detected by the signal detection circuit.
2. The detection apparatus according to claim 1,
the signal response circuit comprises a first judgment unit, a signal analysis unit, a second judgment unit and a signal sending unit; wherein.
The first judging unit is used for judging whether the signal detection circuit receives electromagnetic waves sent by an external designated area or not, and if so, the signal analysis unit is triggered; otherwise, triggering the signal sending unit;
the signal analysis unit is used for analyzing the electromagnetic wave detected by the signal detection circuit under the triggering of the first judgment unit so as to acquire the frequency of the electromagnetic wave;
the second judging unit is used for judging whether the frequency acquired by the signal analyzing unit is within a preset frequency threshold value, and if so, determining that an electromagnetic pen exists in the designated area; otherwise, triggering the signal sending unit;
the signal sending unit is configured to send alarm information to an external alarm system under the trigger of the first determining unit or the second determining unit, so that the external alarm system performs an alarm.
3. The detection apparatus according to claim 2,
further comprising: an alarm device; wherein,
the signal sending unit is further configured to send alarm information to the alarm device under the trigger of the first determining unit or the second determining unit;
and the warning device is used for warning when the warning information sent by the signal sending unit is received.
4. The detection apparatus according to claim 2,
the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
5. The detection apparatus according to any one of claims 1 to 4, characterized in that,
the control module is further used for controlling the power supply transmitting circuit to stop providing the electromagnetic field to the external designated area when receiving a second trigger signal.
6. A method of inspecting an electromagnetic pen using the inspection apparatus of any one of claims 1 to 5, comprising:
when the control module receives a first trigger signal, the control module controls the power supply transmitting circuit to provide an electromagnetic field for the designated area;
detecting the electromagnetic wave of the designated area by using a signal detection circuit;
and utilizing a signal response circuit to determine whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit.
7. The method of claim 6,
the determining, by the signal response circuit, whether an electromagnetic pen exists in the designated area according to the electromagnetic wave detected by the signal detection circuit includes:
judging whether the signal detection circuit receives electromagnetic waves emitted by an external specified area by using a first judgment unit, and if so, executing the step A1; otherwise, go to step A3;
a1: analyzing the electromagnetic wave detected by the signal detection circuit by using a signal analysis unit to obtain the frequency of the electromagnetic wave;
a2: judging whether the frequency acquired by the signal analysis unit is within a preset frequency threshold value by using a second judgment unit, and if so, determining that an electromagnetic pen exists in the designated area; otherwise, go to step A3;
a3: and sending alarm information to an external alarm system by using the signal sending unit so as to enable the external alarm system to alarm.
8. The method of claim 7,
the a3 further comprises: sending alarm information to an alarm device by using a signal sending unit;
further comprising:
and when the alarm device receives the alarm information sent by the signal sending unit, alarming.
9. The method of claim 7,
the preset frequency threshold includes: not less than 120KHz and not more than 170 KHz.
10. The method according to any one of claims 6 to 9,
further comprising:
and controlling the power supply transmitting circuit to stop supplying the electromagnetic field to the external designated area by using the control module when receiving the second trigger signal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189432A (en) * | 2018-05-18 | 2021-07-30 | 神讯电脑(昆山)有限公司 | Automatic test system and test method for magnetic control pen |
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