CN114120619A - Apparatus for detecting matching relation of radio remote control device and method thereof - Google Patents
Apparatus for detecting matching relation of radio remote control device and method thereof Download PDFInfo
- Publication number
- CN114120619A CN114120619A CN202111341112.XA CN202111341112A CN114120619A CN 114120619 A CN114120619 A CN 114120619A CN 202111341112 A CN202111341112 A CN 202111341112A CN 114120619 A CN114120619 A CN 114120619A
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- remote control
- chip
- control device
- pin
- detecting
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides a matching relation detection device and method for detecting the matching relation between a transmitting end and a receiving end of a radio remote control device, wherein the detection device comprises: a signal receiving unit configured to receive a wireless signal transmitted from a transmitting end of a remote control device; an interface unit configured to provide an interface connected with a chip under test extracted from a receiving end of the inspection remote control device; and a processor configured to control to supply power to the chip to be tested through the interface unit and detect a signal change of the chip pin from the chip to be tested, wherein when it is determined that the signal change on the chip pin to be tested conforms to a predetermined condition corresponding to an input of the transmitting terminal of the remote control device, it is determined that there is a corresponding matching relationship between the transmitting terminal and the receiving terminal of the remote control device.
Description
Technical Field
The invention relates to the field of radio matching relation detection, in particular to a device and a method for detecting a matching relation between a transmitting end and a receiving end in radio remote control.
Background
For a long time, according to practice, the inspection scope of the electronic remote control explosion device (electronic remote control fire-releasing device) includes criminal technology explosion experiments such as electronic remote control device inspection, powder charge (fire and explosive) inspection and the like.
However, if the matching relationship between the signal receiving terminal of the electronic remote control device and the signal transmitting terminal (remote controller) of the electronic remote control device is not checked, the relationship between the signal receiving terminal of the electronic remote control device and the transmitting terminal of the electronic remote control device cannot be verified, which causes the evidence chain to contain serious flaws, so that the criminal suspect cannot be directly verified to implement the remote control explosion crime.
In the existing radio remote control system, the matching relationship between the remote control end and the transmitting end can be verified under the condition that both the transmitting end and the receiving end can work normally. However, under the condition that the receiving end of the remote control device cannot work normally, whether the receiving end and the transmitting end have a matching relationship cannot be verified.
However, in practice, the receiving end of the remote control device cannot work under normal conditions because the receiving end of the electronic remote control device is exploded or the unexploded electronic remote control explosive device is subjected to explosion elimination treatment by destroying key parts (the signal receiving end and the power supply end of the electronic remote control device) by a water cannon, so that whether the receiving end and the transmitting end have a matching relationship cannot be verified.
In addition, the receiving end of the electronic remote control device is damaged, so that the model of the chip in the receiving end cannot be known. In this case, it is difficult to determine the specific access pin for the wireless signal on the chip. In addition, other enabling signals may exist in the chip to be tested, and it is difficult to detect whether a matching relationship exists between the transmitting end and the receiving end under the condition that the function of the relevant signal cannot be determined.
Disclosure of Invention
According to an aspect of the present invention, there is provided an apparatus and method for verifying a matching relationship between a receiving terminal and a transmitting terminal in a radio remote control by constructing a basic operation circuit of a control chip in case that the receiving terminal of the radio remote control apparatus is damaged.
One aspect of the present invention provides a matching relationship detection apparatus for detecting a matching relationship between a transmitting end and a receiving end of a remote control apparatus, including: a signal receiving unit configured to receive a wireless signal transmitted from a transmitting end of a remote control device; an interface unit configured to provide an interface connected with a chip under test extracted from a receiving end of the inspection remote control device; and a processor configured to control to supply power to the chip to be tested through the interface unit and detect a signal change of the chip pin from the chip to be tested, wherein when it is determined that the signal change on the chip pin to be tested conforms to a predetermined condition corresponding to an input of the transmitting terminal of the remote control device, it is determined that there is a corresponding matching relationship between the transmitting terminal and the receiving terminal of the remote control device.
One aspect of the present invention provides a matching relationship detection apparatus for detecting a matching relationship between a transmitting end and a receiving end of a remote control apparatus, further comprising: a memory configured to store the matching result received from the processor or to store preset detection data.
An aspect of the present invention provides a matching relationship detecting device for detecting a matching relationship between a transmitting end and a receiving end of a remote control device, wherein the processor is further configured to determine a pin distribution of a chip to be tested connected to the interface unit.
An aspect of the present invention provides a matching relationship detecting device for detecting a matching relationship between a transmitting end and a receiving end of a remote control device, wherein determining pin distribution of a chip to be tested includes determining the pin distribution by retrieving a history matching result stored in a memory or preset matching data.
An aspect of the present invention provides a matching relationship detecting device for detecting a matching relationship between a transmitting end and a receiving end of a remote control device, wherein determining pin distribution of a chip to be detected includes detecting pin distribution of the chip to be detected by an exhaustive algorithm.
An aspect of the present invention provides a matching relationship detecting device for detecting a matching relationship between a transmitting end and a receiving end of a remote control device, wherein the processor is further configured to enable a chip to be tested by supplying power to the chip through an interface unit.
An aspect of the present invention provides a matching relationship detecting apparatus for detecting a matching relationship of a transmitting terminal and a receiving terminal of a remote control apparatus, wherein the wireless signal is generated by combining an address code of the transmitting terminal of the remote control apparatus and a value corresponding to a key input.
An aspect of the present invention provides a matching relationship detection apparatus for detecting a matching relationship between a transmitting end and a receiving end of a remote control apparatus, wherein the predetermined condition includes: when the voltage change of a signal on a pin of a chip to be tested exceeds a threshold value, determining that a corresponding matching relation exists between a transmitting end and a receiving end of a remote control device; or when the voltage change of the signal on the pin of the chip to be detected is detected within a preset time range, determining that the corresponding matching relationship exists between the transmitting end and the receiving end of the remote control device.
An aspect of the present invention provides a matching relationship detecting device for detecting a matching relationship between a transmitting terminal and a receiving terminal of a remote control device, wherein when an enable pin for power supply of a chip to be detected cannot be detected, information that the enable pin for power supply cannot be detected is transmitted to a user.
An aspect of the present invention provides an operation method of a matching relationship detecting device for detecting a matching relationship of a transmitting end and a receiving end of a remote control device, the method including: the method comprises the following steps of connecting a chip to be tested extracted from a receiving end of a detection remote control device through an interface unit, and determining pin distribution of the chip to be tested; enabling the chip to be tested and receiving a signal sent by a transmitting end of a remote control device; and polling and detecting the pin of the chip to be detected through the interface unit so as to detect the output signal change on the pin of the chip to be detected, wherein when the signal change on the pin of the chip is determined to accord with a preset condition corresponding to the input of the transmitting end of the remote control device, the transmitting end and the receiving end of the remote control device are determined to have a corresponding matching relationship.
Advantageous effects
According to various aspects of the invention, the matching relationship between the receiving end and the transmitting end of the remote control device can be automatically, quickly and accurately judged.
Drawings
Fig. 1 is a block diagram of an apparatus for detecting a matching relationship of a transmitting end and a receiving end of a remote control apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an operating environment of an apparatus for detecting a matching relationship of a transmitting end and a receiving end of a remote control device according to an embodiment of the present invention; and
fig. 3 is a flowchart of a method for detecting a matching relationship between a transmitting end and a receiving end of a remote control device according to an embodiment of the present invention.
Detailed Description
Before proceeding with the following detailed description, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The terms "couple," "connect," and derivatives thereof refer to any direct or indirect communication or connection between two or more elements, whether or not those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," as well as derivatives thereof, encompass both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, mean inclusion without limitation. The term "or" is inclusive, meaning and/or. The phrase "associated with … …" and derivatives thereof means including, included within … …, interconnected, contained within … …, connected or connected with … …, coupled or coupled with … …, in communication with … …, mated, interwoven, juxtaposed, proximate, bound or bound with … …, having an attribute, having a relationship or having a relationship with … …, and the like. The term "driver" refers to any device, system, or part thereof that controls at least one operation. Such a driver may be implemented in hardware, or a combination of hardware and software and/or firmware. The functionality associated with any particular drive may be centralized or distributed, whether locally or remotely. The phrase "at least one of, when used with a list of items, means that a different combination of one or more of the listed items can be used and only one item in the list may be required. For example, "at least one of A, B, C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, A and B and C.
Definitions for other specific words and phrases are provided throughout this patent document. Those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases.
In this patent document, the application combination of modules and the division of sub-modules are only used for illustration, and the application combination of modules and the division of sub-modules may have different ways without departing from the scope of the present disclosure.
Fig. 1 is a block diagram of an apparatus for detecting a matching relationship of a transmitting end and a receiving end of a remote control apparatus according to an embodiment of the present invention.
Referring to fig. 1, in an apparatus 100 for detecting a matching relationship of a transmitting end and a receiving end of a remote control apparatus, a signal receiving unit 101, an interface unit 102, a processor 103, and a memory 104 are included. The signal receiving unit 101 is for receiving a wireless signal from the outside and supplying the received signal to the interface unit. The interface unit 102 provides an interface for connecting with a chip under test extracted from the receiving end of the exploding electronic remote control device, which may be used for supplying power to the chip and for detecting signals on the pins of the chip, and in addition, the interface unit 102 is connected to the signal receiving unit 101 and the processor 103 to supply received wireless signals to the chip under test and to communicate with the processor 103. The processor 103 is used to control the overall operation of the detection apparatus 100 to supply power to the chip under test or detect signal changes at the chip pins from the chip under test. In addition, the processor 103 may also communicate with the memory 104 through the bus to store the detection result into the memory 104 or read a previous detection result from the memory 104. The memory 104 is configured to receive the detection result from the processor 103 or store preset detection data.
Fig. 2 is a schematic diagram of an operating environment of a device for detecting a matching relationship of a transmitting end and a receiving end of a remote control device according to an embodiment of the present invention.
Referring to fig. 2, the transmitting terminal 200 of the remote control device transmits a wireless signal to the matching relation detecting device 100. The matching relation detecting apparatus 100 receives a signal through the signal receiving unit 101 and processes it.
Normally, when the wireless remote control device leaves the factory, it has its own address code (ID), for example, the address code may be 20 bits of data, and 2 may be generated from the 20 bits of address code20(100 ten thousand) combinations, thereby avoiding the probability of duplication of codes by the remote control device.
In addition, the transmitting end 200 of the remote controller has an input unit 203 for input, for example, keys or buttons. When the user controls the remote control device by the input unit 203, for example, a key press input, the transmitting terminal 200 of the remote control device combines the address code and the value corresponding to the key input according to the key input of the user to perform an operation, and transmits the combined wireless data for the matching relation detecting device 100 to perform the validity judgment and output control.
Under normal conditions, an address code of a legal remote controller is prestored in a control chip inside a receiving end of the remote control device, when wireless data related to remote control information is received each time, the receiving end control chip of the remote control device decodes the received data to generate an address code and a key value, if the decoded address code is consistent with the address code prestored by the receiving end control chip, the decoded address code is regarded as a legal key, and at the moment, the receiving end of the remote control device is considered to have a matching relationship with a transmitting end of the remote control device and make a correct response; if not, the key is regarded as an illegal key and no reaction is made.
According to the embodiment of the invention, under the condition that the receiving end of the remote control device is damaged, the matching relation between the receiving end of the remote control device and the transmitting end of the remote control device is determined by detecting the chip to be tested extracted from the damaged receiving end of the remote control device.
Specifically, after the chip to be tested is extracted from the damaged receiving end of the remote control device, the chip to be tested is connected to the matching relation detecting device 100 through the interface unit 102. The matching relation detecting apparatus 100 detects a power supply pin of a chip to be tested through the interface unit 102 and activates the chip to be tested by supplying power to the chip to be tested. Thereafter, the signal change on the corresponding pin is determined by polling and detecting the pins of other chips under the condition that the chip to be tested is activated. And when the signal change on the chip pin is determined to accord with the preset condition corresponding to the input of the transmitting terminal 200 of the remote control device, determining that the transmitting terminal 200 of the remote control device has a corresponding matching relation with the chip to be tested, otherwise, determining that the corresponding matching relation does not exist.
According to the embodiment of the present invention, when the matching relationship detection apparatus 100 detects the power supply pin of the chip to be tested through the interface unit 102, the pin for enabling the chip is preferentially determined, for example, the possible access pins of the input signal and the enable signal can be determined by analyzing the historical matching data stored in the memory 104, so that different access schemes are changed to ensure that the working conditions of the chip to be tested are met. After determining the enable pin for power supply, a change in the output signal is detected by sequentially scanning the other pins.
According to the embodiment of the present invention, when the matching relationship detection apparatus 100 detects the power supply pins of the chip to be detected through the interface unit 102, if the enable pins for supplying power cannot be determined from the history or common pin function distribution combinations, an algorithm exhaustion method is used to determine the pin distribution by traversing all the pin combinations, and finally, the detection result is obtained.
Fig. 3 is a flowchart illustrating a method for detecting a matching relationship of a transmitting end and a receiving end of a remote control device according to an embodiment of the present invention.
Referring to fig. 3, in step 1, a chip to be tested is connected through an interface unit, and the pin distribution thereof is determined; when the pin distribution of the chip to be detected is determined, the pin distribution can be determined by retrieving historical matching data or common matching data, or the pin distribution of the chip to be detected can be detected through an exhaustive algorithm.
According to the embodiment of the present invention, when the enable pin for power supply of the chip to be tested cannot be detected (the enable pin is damaged) in step 1, information that the enable pin for power supply cannot be detected is issued to the user.
In step 2, the chip to be tested is enabled and a signal transmitted through the remote control device transmitting terminal is received, wherein the signal transmitted through the remote control device transmitting terminal is generated by combining the address code and the value corresponding to the key input.
In step 3, polling detection is performed on the pin of the chip to be detected through the interface unit to detect the output signal change on the pin of the chip to be detected, wherein when the signal change on the pin of the chip is determined to meet the predetermined condition corresponding to the input of the transmitting end of the remote control device, the transmitting end of the remote control device is determined to have a corresponding matching relationship with the receiving end. The predetermined condition includes, for example, when the voltage variation of the signal on the chip pin exceeds a threshold, determining that a corresponding matching relationship exists between a transmitting end and a receiving end of the remote control device; or when the voltage change of the signal on the chip pin is detected within a preset time range, determining that the corresponding matching relationship exists between the transmitting end and the receiving end of the remote control device.
Although the present disclosure has been described with exemplary embodiments, various changes and modifications may be suggested to one skilled in the art. The present disclosure is intended to embrace such alterations and modifications as fall within the scope of the appended claims.
None of the description in this specification should be read as implying that any particular element, step, or function is an essential element which must be included in the claim scope. The scope of patented subject matter is defined only by the claims.
Claims (10)
1. A matching relationship detecting device for detecting a matching relationship of a transmitting end and a receiving end of a radio remote control device, comprising:
a signal receiving unit configured to receive a wireless signal transmitted from a transmitting end of a remote control device;
an interface unit configured to provide an interface connected with a chip under test extracted from a receiving end of the inspection remote control device; and
a processor configured to control to supply power to the chip under test through the interface unit and to detect a signal change of a pin of the chip from the chip under test,
when the signal change on the pin of the chip to be tested is determined to meet the preset condition corresponding to the input of the transmitting end of the remote control device, the transmitting end and the receiving end of the remote control device are determined to have a corresponding matching relation.
2. The matching relation detecting apparatus as recited in claim 1, further comprising:
a memory configured to store the matching result received from the processor or to store preset detection data.
3. The match relationship detection apparatus as claimed in claim 1, wherein the processor is further configured to determine a pin distribution of a chip under test connected to the interface unit.
4. The matching relation detecting apparatus as claimed in claim 3, wherein determining the pin distribution of the chip under test includes determining the pin distribution by retrieving a history matching result stored in a memory or preset matching data.
5. The matching relation detecting apparatus as recited in claim 3, wherein determining the pin distribution of the chip under test includes detecting the pin distribution of the chip under test by an exhaustive algorithm.
6. The match relationship detection apparatus as recited in claim 3, the processor further configured to enable a chip under test by powering the chip under test through an interface unit.
7. The matching relation detecting device as claimed in claim 1, wherein the wireless signal is generated by combining an address code of a transmitting terminal of a remote control device and a value corresponding to a key input.
8. The matching relation detection apparatus according to claim 1, wherein the predetermined condition includes: when the voltage change of a signal on a pin of a chip to be tested exceeds a threshold value, determining that a corresponding matching relation exists between a transmitting end and a receiving end of a remote control device; or when the voltage change of the signal on the pin of the chip to be detected is detected within a preset time range, determining that the corresponding matching relationship exists between the transmitting end and the receiving end of the remote control device.
9. The matching relation detecting device as claimed in claim 3, wherein when the enable pin for power supply of the chip under test cannot be detected, information that the enable pin for power supply cannot be detected is issued to a user.
10. A method of operation of a match relationship detection device for detecting a match relationship of a transmitting end and a receiving end of a remote control device, the method comprising:
the method comprises the following steps of connecting a chip to be tested extracted from a receiving end of a detection remote control device through an interface unit, and determining pin distribution of the chip to be tested;
enabling the chip to be tested and receiving a signal sent by a transmitting end of a remote control device;
polling and detecting the pins of the chip to be detected through the interface unit to detect the output signal change on the pins of the chip to be detected,
when the signal change on the chip pin is determined to meet the preset condition corresponding to the input of the transmitting end of the remote control device, the transmitting end and the receiving end of the remote control device are determined to have a corresponding matching relation.
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| CN202111341112.XA CN114120619B (en) | 2021-11-12 | 2021-11-12 | Device and method for detecting matching relation of radio remote control device |
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| CN202111341112.XA CN114120619B (en) | 2021-11-12 | 2021-11-12 | Device and method for detecting matching relation of radio remote control device |
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