CN114120619B - Device and method for detecting matching relation of radio remote control device - Google Patents
Device and method for detecting matching relation of radio remote control device Download PDFInfo
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- CN114120619B CN114120619B CN202111341112.XA CN202111341112A CN114120619B CN 114120619 B CN114120619 B CN 114120619B CN 202111341112 A CN202111341112 A CN 202111341112A CN 114120619 B CN114120619 B CN 114120619B
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- chip
- remote control
- control device
- pin
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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 a method thereof 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 the remote control device; an interface unit configured to provide an interface connected with a chip to be tested extracted from a receiving end of the detection remote control device; and a processor configured to control to supply power to the chip to be tested and detect a signal change of a chip pin from the chip to be tested through the interface unit, wherein when it is determined that the signal change on the chip pin to be tested meets a predetermined condition corresponding to an input of the transmitting end of the remote control device, it is determined that a corresponding matching relationship exists between the transmitting end and the receiving end 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 matching relation between a transmitting end and a receiving end in a radio remote control.
Background
For a long time, according to practice, the inspection category of an electronic remote control explosion device (an electronic remote control ignition device) comprises criminal technology explosion experiments such as electronic remote control device inspection, charge (fire and explosive) inspection and the like.
However, if the matching relationship between the signal receiving end of the electronic remote control device and the signal transmitting end (remote controller) of the electronic remote control device is not checked, the relationship between the signal receiving end of the electronic remote control device and the transmitting end of the electronic remote control device in case of involvement cannot be verified, which causes serious flaws in the evidence chain, so that the criminal suspects cannot be directly verified to implement remote control explosion crimes.
In the existing radio remote control system, under the condition that the transmitting end and the receiving end can work normally, the matching relation between the remote control end and the transmitting end can be verified. And under the condition that the receiving end of the remote control device cannot work normally, whether the matching relationship exists between the receiving end and the transmitting end cannot be verified.
However, in practice, since the receiving end of the electronic remote control device has exploded, or the explosion-eliminating treatment of the key parts (the signal receiving end and the power supply of the electronic remote control device) of the water cannon is adopted for the electronic remote control explosion device which does not explode, the receiving end of the remote control device cannot work under normal conditions, so that whether the matching relationship exists between the receiving end and the transmitting end cannot be verified.
In addition, since the receiving end of the electronic remote control device is damaged, the type of the chip in the receiving end may not be known. In this case, it is difficult to determine the specific access pin of the on-chip wireless signal. In addition, other enabling signals may exist in the tested chip, and under the condition that the related signals cannot determine the functions of the enabling signals, whether the transmitting end and the receiving end have a matching relationship is difficult to detect.
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 end and a transmitting end in a radio remote control by constructing a basic operating circuit of a control chip in case that the receiving end of the radio remote control is damaged.
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 device, including: a signal receiving unit configured to receive a wireless signal transmitted from a transmitting end of the remote control device; an interface unit configured to provide an interface connected with a chip to be tested extracted from a receiving end of the detection remote control device; and a processor configured to control to supply power to the chip to be tested and detect a signal change of a chip pin from the chip to be tested through the interface unit, wherein when it is determined that the signal change on the chip pin to be tested meets a predetermined condition corresponding to an input of the transmitting end of the remote control device, it is determined that a 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 detection apparatus for detecting a matching relationship between a transmitting end and a receiving end of a remote control device, further including: and 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 apparatus 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 pin distribution of a chip to be tested connected to an interface unit.
An aspect of the present invention provides a matching relationship detecting apparatus 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 determining pin distribution by retrieving a history matching result or preset matching data stored in a memory.
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 device, where determining pin distribution of a chip to be detected includes detecting pin distribution of the chip to be detected through an exhaustion algorithm.
An aspect of the present invention provides a matching relation detection device for detecting a matching relation 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 to be tested through an interface unit.
An aspect of the present invention provides a matching relationship detecting apparatus for detecting a matching relationship of a transmitting end and a receiving end of a remote control device, wherein the wireless signal is generated by combining an address code of the transmitting end of the remote control device and a value corresponding to a key input.
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, where the predetermined condition includes: when the voltage change of the signal on the pin of the chip to be tested exceeds a threshold value, determining that a corresponding matching relationship exists between the transmitting end and the receiving end of the 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 apparatus for detecting a matching relationship between a transmitting end and a receiving end 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 sent to a user.
An aspect of the present invention provides an operation method of a matching relationship detecting apparatus for detecting a matching relationship between a transmitting end and a receiving end of a remote control apparatus, the method comprising: the method comprises the steps of connecting with a chip to be detected extracted from a receiving end of a detection remote control device through an interface unit, and determining pin distribution of the chip to be detected; enabling the chip to be tested and receiving a signal sent by a transmitting end of a remote control device; the method comprises the steps of carrying out polling detection on a pin of a chip to be detected through an interface unit to detect 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 be in accordance with a preset condition corresponding to input of a transmitting end of a remote control device, a corresponding matching relation exists between the transmitting end and a receiving end of the remote control device.
Advantageous effects
According to the invention, the matching relation 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 device 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 of 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 "coupled," "connected," 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," and 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 its derivatives are intended to include, be included in, interconnect with, contain within … …, connect or connect with … …, couple or couple with … …, communicate with … …, mate, interleave, juxtapose, approximate, bind or bind with … …, have attributes, have relationships or have relationships with … …, etc. The term "drive" refers to any device, system, or portion 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," when used with a list of items, means that different combinations of one or more of the listed items may be used, and that 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 the modules and the division of the sub-modules are for illustration only, and the application combination of the modules and the division of the sub-modules may have different manners without departing from the scope of the 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 device 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 device, a signal receiving unit 101, an interface unit 102, a processor 103, and a memory 104 are included. The signal receiving unit 101 is configured to receive a wireless signal from the outside, and supply the received signal to the interface unit. The interface unit 102 provides an interface for connection with a chip to be tested extracted from the receiving end of the electronic remote control device of the explosion, which interface can be used for supplying power to the chip and for detecting signals on the pins of the chip, and the interface unit 102 is further connected to the signal receiving unit 101 and the processor 103 for providing received wireless signals to the chip to be tested and for communicating with the processor 103. The processor 103 is used to control the overall operation of the test device 100 to provide power to the chip under test or to detect signal changes of the chip pins from the chip under test. The processor 103 may also communicate with the memory 104 via a bus to store the test results in the memory 104 or to read previous test results from the memory 104. The memory 104 is configured to receive a detection result from the processor 103 or store detection data set in advance.
Fig. 2 is a schematic diagram of an operating environment of an apparatus 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.
Referring to fig. 2, a transmitting end 200 of the remote control device transmits a wireless signal to the matching relation detecting device 100. The matching relation detecting device 100 receives a signal through the signal receiving unit 101 and processes it.
Typically, when the wireless remote control device leaves the factory, it has its own address code (identity ID), for example, the address code may be 20-bit data, and from the 20-bit address code, 2 may be generated 20 (100 ten thousand) combinations, thereby avoiding the probability of re-encoding of the remote control device.
In addition, the transmitting end 200 of the remote controller also has an input unit 203 for input, for example, keys or buttons. When a user controls the remote control device through the input unit 203, for example, a press input of a key, the transmitting end 200 of the remote control device combines an address code and a value corresponding to the key input according to the key input of the user to operate, and transmits the combined wireless data for the validity judgment and output control of the matching relation detecting device 100.
In general, an address code of a legal remote controller is pre-stored in a control chip inside a receiving end of the remote control device, the receiving end control chip of the remote control device decodes the received data to generate an address code and a key value when wireless data related to remote control information is received each time, if the decoded address code accords with the address code pre-stored by the receiving end control chip of the remote control device, the decoded address code is regarded as a legal key, and at the moment, the receiving end of the remote control device and a transmitting end of the remote control device are considered to have a matching relationship and make a correct reaction; if the key is not matched, the key is regarded as an illegal key, and no reaction is performed.
According to the embodiment of the invention, in the case that the receiving end of the remote control device is damaged, the matching relationship 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 receiving end of the destroyed 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 device 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, signal changes on the corresponding pins are determined by polling the pins of the other chips with the chip under test activated. When it is determined that the signal variation on the chip pin meets a predetermined condition corresponding to the input of the transmitting end 200 of the remote control device, it is determined that the transmitting end 200 of the remote control device has a corresponding matching relationship with the chip to be tested, otherwise, the corresponding matching relationship does not exist.
According to the embodiment of the present invention, when the matching relation detecting device 100 detects the power supply pin of the chip to be detected through the interface unit 102, the pin for enabling the chip is preferentially determined, for example, by analyzing the history matching data stored in the memory 104, the possible access pins of the input signal and the enabling signal can be judged, so that different access schemes are changed to ensure that the working condition of the chip to be detected is satisfied. After determining the enable pins for supplying power, the change in the output signal is detected by sequentially scanning the other pins.
According to the embodiment of the invention, when the matching relation detection device 100 detects the power supply pins of the chip to be detected through the interface unit 102, if the enable pins for power supply cannot be determined from the historical 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 its pin distribution is determined; when determining the pin distribution of the chip to be tested, the pin distribution can be determined by searching historical matching data or common matching data, or the pin distribution of the chip to be tested can be detected through an exhaustion algorithm.
According to the embodiment of the present invention, when the enable pin (enable pin damage) for power supply of the chip to be tested cannot be detected 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 sent through the remote control transmitting end is received, wherein the signal sent through the remote control transmitting end is generated by combining an address code and a 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 output signal variation on the pin of the chip to be detected, wherein when the signal variation on the pin of the chip is determined to be in accordance with a predetermined condition corresponding to input of the transmitting end of the remote control device, a corresponding matching relationship exists between the transmitting end and the receiving end of the remote control device. The preset conditions include, for example, when the voltage variation of the signal on the chip pin exceeds a threshold value, determining that a corresponding matching relationship exists between the transmitting end and the 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 disclosure is intended to embrace such alterations and modifications that fall within the scope of the appended claims.
Any description of the present invention should not be construed as implying that any particular element, step, or function is a necessary element to be included in the scope of the claims. The scope of patented subject matter is defined only by the claims.
Claims (9)
1. A matching relationship detecting apparatus for detecting a matching relationship of a transmitting end and a receiving end of a radio remote control apparatus, comprising:
a signal receiving unit configured to receive a wireless signal transmitted from a transmitting end of the remote control device;
an interface unit configured to provide an interface connected with a chip to be tested extracted from a receiving end of the detection remote control device; and
a processor configured to control to supply power to the chip under test through the interface unit and detect signal changes of the chip pins from the chip under test,
wherein when the signal change on the chip pin to be detected is determined to be in accordance with a preset condition corresponding to the input of the transmitting end of the remote control device, the corresponding matching relationship between the transmitting end and the receiving end of the remote control device is determined,
wherein the predetermined condition includes: when the voltage change of the signal on the pin of the chip to be tested exceeds a threshold value, determining that a corresponding matching relationship exists between the transmitting end and the receiving end of the 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.
2. The matching relation detection device according to claim 1, further comprising:
and a memory configured to store the matching result received from the processor or to store preset detection data.
3. The match relationship detection apparatus of claim 1, the processor further configured to determine a pin profile of a chip under test connected to the interface unit.
4. The matching relationship detecting apparatus according to claim 3, wherein determining the pin distribution of the chip to be detected comprises determining the pin distribution by retrieving a history matching result or preset matching data stored in the memory.
5. The matching relationship detection apparatus as recited in claim 3, wherein determining the pin profile of the chip under test includes detecting the pin profile of the chip under test by an exhaustive algorithm.
6. The match relationship detection apparatus of claim 3, the processor further configured to enable the chip under test by supplying power to the chip under test through an interface unit.
7. The matching relation detection device according to claim 1, wherein the wireless signal is generated by combining an address code of a transmitting end of the remote control device and a value corresponding to a key input.
8. The matching relation detecting apparatus according to claim 3, wherein when the enable pin for power supply of the chip to be detected cannot be detected, information that the enable pin for power supply cannot be detected is issued to the user.
9. A method of operation of a matching relationship detection device for detecting a matching relationship of a transmitting end and a receiving end of a remote control device, the method comprising:
the method comprises the steps of connecting with a chip to be detected extracted from a receiving end of a detection remote control device through an interface unit, and determining pin distribution of the chip to be detected;
enabling the chip to be tested and receiving a signal sent by a transmitting end of a remote control device;
the pin of the chip to be tested is polled and detected through the interface unit so as to detect the output signal change on the pin of the chip to be tested,
wherein when the signal change on the chip pin is determined to be in accordance with a predetermined condition corresponding to the input of the transmitting end of the remote control device, the corresponding matching relationship between the transmitting end and the receiving end of the remote control device is determined,
wherein the predetermined condition includes: when the voltage change of the signal on the pin of the chip to be tested exceeds a threshold value, determining that a corresponding matching relationship exists between the transmitting end and the receiving end of the 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.
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