CN109660269B - Radio frequency detection system capable of synchronously adjusting working parameters - Google Patents
Radio frequency detection system capable of synchronously adjusting working parameters Download PDFInfo
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Abstract
The invention discloses a radio frequency detection system capable of synchronously adjusting working parameters, which comprises a transmitter and a receiver, wherein the transmitter comprises a first processor, a signal generation unit, a power amplification unit and a transmitting antenna; the system also comprises a scheme configuration unit which is connected with the first processor and/or the second processor and is used for simultaneously providing the first processor and the second processor with the adjustment scheme; the first processor adjusts operating parameters of the transmitter in accordance with the received adjustment scheme and the second processor adjusts operating parameters of the receiver in accordance with the received adjustment scheme. The invention can conveniently and quickly carry out synchronous adjustment/configuration on the working parameters of the transmitter and the receiver, does not need to be on site by maintenance personnel, does not need to manually carry out reciprocating adjustment between the transmitter and the receiver, and has higher adjustment efficiency and good automation and intellectualization effects.
Description
Technical Field
The invention relates to the field of radio frequency electronic commodity anti-theft detection, in particular to a radio frequency detection system capable of synchronously adjusting working parameters.
Background
The door mounting mode is an important application system of Electronic Article Surveillance (EAS). The opposite door refers to a channel formed by a transmitting antenna frame and a receiving antenna frame, and forms a basic unit of the system, and can be expanded into a plurality of antenna frames to form a plurality of inspection channels. The transmitter and receiver in the gate are operated independently.
The transmitter mainly comprises a signal generating unit, a power amplifier, an antenna and a synchronous circuit (optional). The signal generating unit generates a scanning frequency, such as an adjusting frequency of 180Hz, a center frequency of 8.2MHz and a scanning bandwidth of 1MHz, and the scanning frequency is transmitted to the antenna through the power amplifier. When the plurality of transmitters work, synchronization is needed, namely the main transmitter outputs scanning frequency, and the auxiliary transmitter receives the signal and transmits the signal to the antenna through the power amplifier. The secondary transmitter oscillator does not work, so that the same frequency and phase of each transmitter are ensured, namely, synchronization.
The receiver mainly comprises a high-frequency receiving (including filtering amplification) circuit, a low-frequency filtering amplification circuit (or realized by software) and a processor (serving as a discriminator function), and an alarm is triggered when the discrimination is passed. The parameters of the receiving circuit board passively work in the corresponding state of the transmitter, such as 8.2MHz and 180 Hz. When the transmitter is changed to 6.8MHz, 160Hz, the receiver needs to be adjusted separately.
For commodity anti-theft signal detection, the principle is as follows: the transmitter sends out a modulation signal (continuous signal), the modulation signal has a set central frequency, a scanning bandwidth and a modulation frequency, and the modulation signal is transmitted out through an antenna after being amplified by power; when the anti-theft tag passes through the signal detection door, the anti-theft tag modulates a signal to generate a response signal (namely, generates resonance), and the receiver sends out an alarm after performing high-pass filtering amplification, detection, low-pass filtering amplification and identification on the response signal.
The reason why false alarm sometimes occurs after the existing commodity anti-theft detection device is used for a period of time normally (namely, when the anti-theft tag does not exist, the receiver gives an alarm) is that interference signals exist in the environment, and the interference signals and response signals of the anti-theft tag regularly occur and are coupled, and after the receiver receives the modulated interference signals, the interference signals are regarded as the response signals of the anti-theft tag, so that the alarm is given. In the environment of installing a plurality of sets of anti-theft detection systems of the same type, the anti-theft detection systems cannot be connected and synchronized because the anti-theft detection systems respectively belong to different shops, and meanwhile, the transmitters all adopt the same scanning parameters, so that mutual interference can be easily generated among the systems. In this regard, it is common practice for after-sales maintenance personnel to adjust the parameters of the transmitter and the receiver multiple times, for example, to perform frequency hopping processing, so as to adjust new and better working parameters.
However, the conventional method has the following problems: 1. the manual work is needed to carry out multiple times of debugging on the site, which is labor-consuming; 2. the transmitter and the receiver need to be debugged (working parameter adjustment) respectively, and the adjustment of the transmitter parameters needs to be carried out by means of information and data provided by the receiver, namely, the transmitter and the receiver need to be debugged repeatedly to obtain proper parameters, and the debugging period is long.
Disclosure of Invention
The invention aims to: aiming at the existing problems, the radio frequency detection system capable of synchronously adjusting the working parameters of the transmitter and the receiver is provided, according to the scheme, the system working parameters can be quickly adjusted on the whole in a plurality of modes, so that the problems that in the prior art, the working parameters of the transmitter and the receiver need to be adjusted manually and independently for a plurality of times, time and labor are wasted, and the parameters cannot be absolutely identical are solved, and the system working parameters are set or adjusted in a low-cost and high-efficiency mode.
The technical scheme adopted by the invention is as follows:
a radio frequency detection system capable of synchronously adjusting working parameters comprises a transmitter and a receiver, wherein the transmitter comprises a first processor, a signal generating unit, a power amplifying unit and a transmitting antenna, and the receiver comprises a receiving antenna, a filtering unit, a second processor and an alarm unit; the system also comprises a scheme configuration unit which is connected with the first processor and/or the second processor and is used for simultaneously providing the first processor and the second processor with the adjustment scheme; the first processor adjusts operating parameters of the transmitter in accordance with the received adjustment scheme and the second processor adjusts operating parameters of the receiver in accordance with the received adjustment scheme. So-called provisioning, i.e. sending data directly or indirectly. The plan configuration unit may be a physical unit provided independently, or may be a logical unit included in the first processor or the second processor.
Further, the above-mentioned solution configuration unit is connected to a first processor or a second processor, the first processor is connected to a first communicator, the second processor is connected to a second communicator, and the first communicator is in signal connection with the second communicator; the processor connected with the scheme configuration unit is used for acquiring the adjustment scheme from the scheme configuration unit and sending the data of the adjustment scheme to the other processor.
Further, the scheme configuration unit is a memory preset with a corresponding relationship between the interference signal information and the adjustment scheme; or a parameter configuration unit receiving external setting information. When the scheme configuration unit is used as the memory, the scheme configuration unit may be a memory externally connected to the processor, or may be a memory of the processor.
Further, the parameter configuration unit is a parameter configurator or is a third communicator.
Further, the step of providing the adjustment schemes for the first processor and the second processor by the scheme configuration unit specifically includes:
the processor connected with the scheme configuration unit acquires the signal output by the filtering unit, analyzes whether an interference signal exists in the signal, automatically matches a corresponding adjustment scheme from the memory according to the analyzed interference signal information if the interference signal exists in the signal, and sends the acquired data of the adjustment scheme to the other processor;
or the processor connected with the scheme configuration unit receives the adjustment scheme sent by the parameter configuration unit and sends the received data of the adjustment scheme to another processor.
Further, the adjustment scheme sent by the processor receiving parameter configuration unit connected to the scheme configuration unit specifically includes: the parameter configurator receives externally input data, processes the externally input data into an adjustment scheme and then transmits the adjustment scheme to the processor connected with the scheme configuration unit.
Further, the parameter configurator includes a display and a keyboard, and the parameter configurator is used for acquiring the currently used working parameters of the receiver and displaying the working parameters through the display, and also receiving externally input information through the keyboard. The display is a device with a display function, and the keyboard is a device with an input function.
Further, the adjustment scheme sent by the processor receiving parameter configuration unit connected to the scheme configuration unit specifically includes: the third communicator receives the remotely configured adjustment scheme and transmits the adjustment scheme to its connected processor.
Further, the scheme configuration unit is connected to the second processor.
Further, the scheme configuration unit is disposed at the receiver end.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. compared with the prior art, the invention can realize synchronous adjustment/configuration of the working parameters of the transmitter and the receiver, and the adjustment of the working parameters of the transmitter and the receiver is based on the same adjustment scheme, thereby ensuring the high consistency of the working parameters of the transmitter and the receiver when synchronously configuring the system parameters. All/part of working parameters of the system can be configured/adjusted at one time through joint adjustment between the receiver and the transmitter, and the method is convenient and quick.
2. The invention can realize the self-adaptive adjustment of the working parameters of the system equipment based on the detected interference signals, does not need to maintain personnel on site, does not need to manually carry out the reciprocating mode adjustment between the transmitter and the receiver, and has higher mode adjustment efficiency and good automation and intellectualization effects.
3. The invention provides sufficient data reference for the selection of the adjustment scheme based on the information received by the receiver, and the adjustment result can be more adaptive to the environment.
4. In the process of adjusting the equipment parameters, the invention does not need to use professional equipment, thereby reducing the technical threshold required by work. Meanwhile, the influence on the site is smaller or even no influence is caused, and the user experience is good.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a configuration diagram of a radio frequency detection system.
FIG. 2 is another configuration diagram of the radio frequency detection system.
FIG. 3 is one embodiment of a radio frequency detection system.
Fig. 4 and 5 are two different embodiments of the rf detection system workflow.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The connection referred to in the present invention means a direct connection or an indirect connection. The signal connection mentioned in the present invention may be a wired signal connection or a wireless signal connection. The devices mentioned in the present invention, such as memories, processors, etc., are described as units, rather than packaged independent devices. The scheme of the invention is characterized in that the connection between the configuration unit and the processor is physical connection or logical connection.
The center frequency, sweep bandwidth, modulation frequency, and transmission power are several important operating parameters of the transmitter, and the receiver will also refer to the center frequency, sweep bandwidth, and modulation frequency when detecting the signal. The center frequency, sweep bandwidth and modulation frequency are the main indicators of the modulated signal. In the existing scheme, when the receiver is installed, the parameters are set for the transmitter firstly, and then the receiver is debugged correspondingly. In general, the factory state is used. When the interference is serious, the parameters are reset:
1) the center frequency. 8.2MHz is an international general value, and if a large-scale store is provided with a plurality of merchants, the system installation quantity is too large, which will cause mutual influence. Can be adjusted to other frequencies, such as 6.8MHz and the like, and becomes the wrong frequency. The frequency error can completely avoid the same frequency interference, but the frequency of the anti-theft label needs to be changed, and the universality is poor.
2) The bandwidth is scanned. Typically set at 900-1000KHz, and can be shrunk to 700-800 KHz or even less in the case of environmental disturbances. The frequency of the anti-theft tag is 8.0-8.4MHz, so that the scanning width is too small, which can cause that part of the tags cannot be detected normally.
3) The frequency is modulated. Typically 180Hz, and may be adjusted to frequencies of 160, 170Hz, etc., called frequency hopping, which varies the duration of the scan time. If 180Hz corresponds to a period of 5.6ms, this means that the tag detection signal appears regularly in 5.6ms period, and the interference signal is relatively cluttered and does not meet the regular rule, so as to eliminate the influence. Frequency hopping can reduce mutual interference between systems, but cannot completely avoid co-channel interference like frequency staggering. The method has the advantages that labels do not need to be replaced, universality is high, and the most common technical means is used practically.
4) The transmit power. In extreme cases, it is adjusted.
As shown in fig. 1, the present embodiment discloses a radio frequency detection system capable of synchronously adjusting operating parameters, which includes a transmitter and a receiver, where the transmitter includes a first processor, a signal generation unit, a power amplification unit and a transmitting antenna, and the receiver includes a receiving antenna, a filtering unit, a second processor and an alarm unit (and typically also includes an amplification unit, which may be integrated into other components); the system also comprises a scheme configuration unit which is connected with the first processor and/or the second processor and is used for simultaneously providing an adjustment scheme for the first processor and the second processor; the first processor adjusts operating parameters of the transmitter according to the received adjustment scheme, and the second processor adjusts operating parameters of the receiver according to the received adjustment scheme.
By setting the scheme configuration unit, synchronous configuration or adjustment of the operating parameters of the transmitter (corresponding to the configuration by the first processor) and the receiver (corresponding to the configuration by the second processor) can be realized. The adjustment of the transmitter and the receiver is based on the same adjustment scheme, so that the working parameters of the transmitter and the receiver are highly consistent when the system parameters are synchronously configured. All/part of working parameters of the system can be configured/adjusted at one time through the scheme configuration unit, and the method is convenient and quick.
As shown in fig. 2, in one embodiment, the solution configuration unit is connected to a first processor or a second processor, the first processor is connected to a first communicator, the second processor is connected to a second communicator, and the first communicator is in signal connection with the second communicator; the processor connected with the scheme configuration unit is used for acquiring the adjustment scheme from the scheme configuration unit and sending the data of the adjustment scheme to the other processor (namely, the processor not directly connected with the scheme configuration unit). In the scheme, the scheme configuration unit is connected to one processor, directly sends the adjustment scheme to the processor, and then the processor transmits the data (parameters) of the adjustment scheme to the other processor through the first communicator and the second communicator which are in signal connection with each other, so that the two processors synchronously adjust the working parameters.
In one embodiment, the scheme configuration unit is a memory preset with a corresponding relationship between the interference signal information and the adjustment scheme. The processor connected with the scheme configuration unit analyzes the signal output by the filtering unit, analyzes whether an interference signal exists in the signal, namely whether a modulation signal of the system is interfered, analyzes information of the interference signal if the signal exists, automatically matches a corresponding adjustment scheme from the memory according to the analyzed information, and sends the acquired data of the adjustment scheme to another processor. For the acquisition of the output signal of the filtering unit, if the scheme configuration unit is connected to the first processor, the data in the second processor is acquired through the first communicator and the second communicator which are connected with each other; if the solution configuration unit is connected to the second processor, the data in the second processor can be directly acquired.
In the operation process of the commodity anti-theft detection system, interference sources, such as LED light sources in a scene, similar detection systems installed nearby, and the like, existing in the environment can mix interference signals generated by the interference sources in signals picked up by the receiver, and some of the signals can affect the detection result, such as false anti-theft alarm of the receiver. Taking the same type of equipment as an example, when two pieces of equipment A and B work at a modulation frequency of 180Hz and cannot be connected and synchronized because the two pieces of equipment A and B belong to different shops respectively, the equipment A can be continuously interfered by a modulation signal generated by the equipment B, the interference occurs periodically, the interference rule of the equipment A is similar to or even identical to that of a normal anti-theft tag response signal, and in this case, an alarm can be generated because the preset alarm judgment rule is identical; the signal received by device B (including the interfering signal) will also exhibit periodic regular fluctuations due to the interference from device a. The receiver indicates the presence of an interfering signal when the received signal exhibits the above-described characteristics. It should be noted that the so-called interference signal is not all radio frequency interference signals, but is an interference signal that is coupled to the modulation signal and may cause the receiver to alarm. The existence of interference signals, the type determination of interference signals, and the extraction of interference information belong to the prior art, and a detailed process is not described here.
Furthermore, the system may be further configured with a cycle number of adaptive parameter adjustment, that is, when there is interference affecting the operation of the system in the environment, the processor connected to the solution configuration unit may adjust to a set of operating parameters that are not interfered or not affected much by the interference by repeatedly executing an adjustment procedure of the operating parameters (i.e., adjusting once and not adjusting for a second time, and repeating this procedure). Therefore, the self-adaptive parameter adjustment can be performed on the environment, the intelligent degree of the system parameter adjustment is greatly improved, the workload of manual intervention is greatly reduced, the automation degree is high, and the labor cost is saved.
In another embodiment, the recipe configuration unit is a parameter configuration unit that receives external setting information. By the method, the working parameters of the system can be quickly adjusted without using professional equipment.
Specifically, in an embodiment, the parameter configuration unit is a parameter configurator. The parameter configurator is arranged at the local of the detection system and can directly receive the setting information input from the outside. For this, the processor connected to the scheme configuration unit receives the adjustment scheme sent by the parameter configuration unit, and sends the received data of the adjustment scheme to another processor. Namely, an adjustment scheme for the working parameters is obtained by receiving the parameters input from the outside. For example, the maintenance personnel or the shop assistant (remotely guided by the maintenance personnel) directly operate on the parameter configurator (the maintenance personnel needs to access the system equipment by the professional equipment in the traditional mode), so that the working parameters of the system can be quickly adjusted, and the operation is simple and convenient.
In another embodiment, the recipe configuration unit is a third communicator. The third communicator receives the adjustment scheme configured at the far end and sends the adjustment scheme to the connected processor; the processor then sends the data of the adjustment scheme to another processor. According to the scheme, the working parameters of the field equipment are directly adjusted in a remote control mode, any facility on the field is not affected, and the method is noninductive for a user, so that the maintenance cost is reduced, the parameter adjusting efficiency is improved, and the user experience is also improved.
The present embodiment discloses a configuration of the parameter configurator in the above embodiments, where the parameter configurator includes a display and a keyboard, and the parameter configurator is configured to obtain the operating parameters currently used by the receiver and display the operating parameters through the display, and also receive externally input information through the keyboard (physical or virtual). In one embodiment, the display is a nixie tube (e.g., 7-segment or 8-segment LED) or LCD screen, and the keyboard is composed of at least one key (physical key or virtual key). For the acquisition mode of the working parameters of the receiver, if the parameter configurator is connected to the first processor, the data in the second processor is acquired through the first communicator and the second communicator which are connected with each other; if the parameter configurator is connected to the second processor, the data in the second processor can be directly acquired. In the foregoing, for adjusting the working parameters of the system (the transmitter and the receiver), the information of the signal received by the receiver needs to be used, and in the conventional method, a second processor needs to be accessed by a professional device to acquire the signal information, then the parameters of the transmitter are adjusted, and then the information of a new signal received by the receiver is observed, and so on. In the scheme, the display of the working parameters of the receiver and the scheme configuration unit are directly integrated, on one hand, the relevant parameters can be visually observed while the mode is adjusted, and support is provided for adjustment (the mode and the parameter display are respectively arranged at two ends of the transmitter and the receiver in the traditional mode), on the other hand, the response of the receiver has real-time performance, the mode adjusting result can be rapidly checked, and the rapid adjustment of the equipment parameters is further realized.
In order to facilitate a fast adjustment/configuration of the operating parameters of the system, the solution configuration unit is connected to the second processor. Therefore, the parameters at the transmitter end can be automatically adjusted based on the response signal received by the receiver (namely, the working parameters at the receiver end are directly used as the adjusting basis), and the response at the receiver end can be directly obtained. In this way, system complexity can be reduced while the response of the system to the mode is quickly observed.
In order to further facilitate the quick adjustment/configuration of the system working parameters, the scheme configuration unit is disposed at the receiver end. Therefore, the complexity of system wiring (namely, construction) can be reduced, the probability of system failure is reduced, and the stability of the system is improved.
As shown in fig. 3, for the configuration of the transmitter, in one embodiment, the first processor is composed of a single chip, a tuning filter, a frequency adjustor and peripheral circuits, the single chip sets a tuning frequency, the frequency adjustor sets a center frequency and a scanning width, and finally a signal generating unit (such as an oscillator) is controlled to generate a corresponding modulation signal. The single chip microcomputer also directly controls the frequency regulator to control the setting of the center frequency and the scanning width. Of course, a frequency synthesizer may be used. The first communication unit is a Tx port and an Rx port of the single chip microcomputer. Regarding the structure of the receiver, in one embodiment, the second processor is composed of a single chip microcomputer and peripheral circuits, and the second communication unit is a Tx port and an Rx port of the single chip microcomputer; the filtering unit comprises a high-pass filtering module and a low-pass filtering module, and the high-pass filtering module and the low-pass filtering module can be analog or digital high-pass filters and low-pass filters; the scheme configuration unit is a memory externally connected with the singlechip (if the scheme configuration unit is other processors with storage functions, the scheme configuration unit can be a built-in memory), a parameter configurator (such as a keyboard or a remote controller), or a communicator matched with a remote end.
The present embodiment discloses an adjustment scheme in the above system, that is, the operating parameters of the receiver and the transmitter are integrally replaced, for example, the currently used operating parameters of the receiver and the transmitter are the first set of scheme, and are now replaced by the second set of scheme. The adjustment scheme may also be adapted based on currently used operating parameters, which are stored in the transmitter and receiver, for example by lowering the modulation frequency by 20Hz based on the current modulation frequency.
The embodiment discloses the structure of the first communication unit and the second communication unit in the system, namely, both the first communication unit and the second communication unit are serial communication units. Namely, serial communication is carried out between the first processor and the second processor. Because there is the power cord of the same kind originally between transmitter and the receiver, this scheme is when detecting system installation, with the help of the circuit of power cord, can accomplish serial communication's wiring, need not extra installation work load.
In one embodiment, the scheme configuration module is a memory connected to the second processor, and the second processor presets a corresponding relationship between the interference signal information and the adjustment scheme, and after analyzing the interference signal information, the second processor extracts the corresponding adjustment scheme from the memory, and sends data of the adjustment scheme to the first processor through serial port communication while adjusting the operating parameters of the receiver.
The embodiment discloses another structure of the first communication unit and the second communication unit in the system, namely, the first communication unit and the second communication unit are both infrared communicators or wireless network cards. Namely, the first processor and the second processor are in infrared communication or local area network communication.
The embodiment discloses an operation method of a radio frequency detection system in the above embodiment, the system includes a transmitter and a receiver, the transmitter includes a first processor, a signal generation unit, a power amplification unit and a transmitting antenna, the first processor is connected with a first communicator, the receiver includes a receiving antenna, a filtering unit, a second processor and an alarm unit, the second processor is connected with a second communicator; the first communicator is in signal connection with the second communicator; the system also includes a solution configuration unit coupled to the second processor. In an initial state (when leaving the factory), an initial adjustment scheme on the scheme configuration unit is used for transmitting initialization working parameters to the second processor, so that initialization of the working parameters of the receiver is completed, when the second processor receives the initial adjustment scheme, data of the adjustment scheme is transmitted to the first processor through the first communicator and the second communicator which are in signal connection with each other (namely, the data is transmitted to the second communicator first, the data is transmitted to the first communicator second, and the data is transmitted to the first processor by the first communicator), and the first processor completes setting of the initialization working parameters of the transmitter according to the received data.
As shown in fig. 4, the present embodiment discloses another operation method of the radio frequency detection system, which includes the following steps:
s1: the second processor receives the signal output by the filtering unit, judges whether an interference signal exists or not, if so, executes S2, otherwise, finishes debugging;
s2: the scheme configuration unit determines an adjustment scheme; the scheme configuration unit can determine the adjustment scheme remotely or locally;
s3: the second processor adjusts the receiver operating parameters according to the adjustment scheme determined in S2 and sends data relating to the transmitter in the adjustment scheme to the transmitter to cause the transmitter to adjust the transmitter operating parameters according to the adjustment scheme.
Preferably, S1 is re-executed after the receiver and the transmitter are both adjusted. And then the working parameters are adjusted to be proper in a circulating mode.
As shown in fig. 5, the present embodiment discloses another operation method of the rf detection system, which includes the following steps:
s1: the second processor receives the signal output by the filtering unit, judges whether an interference signal exists or not, if so, executes S2, otherwise, finishes debugging;
s2: the second processor analyzes the information of the interference signal;
s3: the second processor matches an adjustment scheme aiming at the working parameters of the detection system from the memory according to the interference signal information determined in the S2;
s4: the second processor adjusts the receiver operating parameters according to the adjustment scheme determined in S3 and sends data relating to the transmitter in the adjustment scheme to the first processor to cause the first processor to adjust the transmitter operating parameters according to the adjustment scheme.
Preferably, S1 is re-executed after the receiver and the transmitter are both adjusted. And then the working parameters are adjusted to be proper in a circulating mode.
The terms first, second, etc. in the present invention are only used for describing the corresponding parameters, entities or steps involved in the present invention differently, and are not limited by the entity differences in the specific implementation.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. A radio frequency detection system capable of synchronously adjusting working parameters comprises a transmitter and a receiver, wherein the transmitter comprises a first processor, a signal generating unit, a power amplifying unit and a transmitting antenna, and the receiver comprises a receiving antenna, a filtering unit, a second processor and an alarm unit; the first processor controls the signal generating unit to generate a modulation signal, the modulation signal is amplified by the power amplifying unit and then is emitted by the transmitting antenna, the anti-theft tag resonates with the modulation signal to generate a response signal, when the receiving antenna scans the response signal, the response signal is filtered by the filtering unit and then is transmitted to the second processor for identification, and when the second processor passes the identification, the second processor triggers the alarm unit to alarm; the system is characterized by further comprising a scheme configuration unit, wherein the scheme configuration unit is connected with the first processor and/or the second processor and is used for simultaneously providing an adjustment scheme for the first processor and the second processor; the scheme configuration unit is a memory preset with corresponding relation between interference signal information and an adjustment scheme; or a parameter configuration unit for receiving external setting information; the first processor adjusts the working parameters of the transmitter according to the received adjustment scheme, and the second processor adjusts the working parameters of the receiver according to the received adjustment scheme;
the scheme configuration unit is specifically configured to provide adjustment schemes for the first processor and the second processor, respectively, as follows:
the processor connected with the scheme configuration unit acquires the signal output by the filtering unit, analyzes whether an interference signal exists in the signal, automatically matches a corresponding adjustment scheme from the memory according to the analyzed interference signal information if the interference signal exists in the signal, and sends the acquired data of the adjustment scheme to the other processor;
or the processor connected with the scheme configuration unit receives the adjustment scheme sent by the parameter configuration unit and sends the received data of the adjustment scheme to another processor.
2. The radio frequency detection system of claim 1, wherein the scheme configuration unit is connected to a first processor or a second processor, the first processor is connected to a first communicator, the second processor is connected to a second communicator, and the first communicator and the second communicator are in signal connection; the processor connected with the scheme configuration unit is used for acquiring the adjustment scheme from the scheme configuration unit and sending the data of the adjustment scheme to the other processor.
3. The radio frequency detection system of claim 1, wherein the parameter configuration unit is a parameter configurator or a third communicator.
4. The radio frequency detection system according to claim 1, wherein the adjustment scheme sent by the processor reception parameter configuration unit connected to the scheme configuration unit is specifically: the parameter configurator receives externally input data, processes the externally input data into an adjustment scheme and then transmits the adjustment scheme to the processor connected with the scheme configuration unit.
5. The radio frequency detection system according to claim 4, wherein the parameter configurator includes a display and a keyboard, the parameter configurator is configured to obtain the operating parameters currently used by the receiver and to display the operating parameters through the display, and to receive externally input information through the keyboard.
6. The radio frequency detection system according to claim 1, wherein the adjustment scheme sent by the processor reception parameter configuration unit connected to the scheme configuration unit is specifically: the third communicator receives the remotely configured adjustment scheme and transmits the adjustment scheme to its connected processor.
7. The radio frequency detection system according to one of claims 2 to 6, wherein the scheme configuration unit is connected to the second processor.
8. The radio frequency detection system of claim 7, wherein the scheme configuration unit is disposed at the receiver end.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588933A (en) * | 2004-09-10 | 2005-03-02 | 深圳市中实科技有限公司 | Digital demodulation receiver |
| CN105049076A (en) * | 2015-08-25 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Software radio communication method and system |
Family Cites Families (3)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588933A (en) * | 2004-09-10 | 2005-03-02 | 深圳市中实科技有限公司 | Digital demodulation receiver |
| CN105049076A (en) * | 2015-08-25 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Software radio communication method and system |
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