DE212020000307U1 - Intelligent debug system for debugging a medium wave matching network - Google Patents

Abstract

An intelligent debug system for debugging a medium wave matching network, characterized in that the debug system comprises a test machine unit, a matching network unit, a dummy load unit, a parameter test unit, an automatic debugging unit and an intelligent control unit, the matching network unit having the test machine unit and the dummy -Last unit is connected, wherein the output of the adaptation network unit is connected to the parameter test unit, the output of the parameter test unit is connected to the intelligent control unit, the output of the intelligent control unit is connected to the automatic debug unit, the output of the automatic debug unit with the matching network unit is connected, wherein
the matching network unit forms a set of medium wave emission subsystems with the test machine unit and the dummy load unit in order to provide the operating parameters for the parameter test unit in the warm state;
wherein a parameter test unit is configured to test the operating parameters of the medium wave emission subsystem in a warm state and to send the operating parameters to the intelligent control unit;
wherein the intelligent control unit is designed to receive the operating parameters detected by the parameter test unit, to determine an operating state of the medium-wave emission subsystem and to position an element to be set and at the same time to control the automatic debugging unit in order to automatically debug the element to be set of the matching network unit, wherein the iterative control optimizes the operating parameters of the medium wave emission subsystem;
wherein the automatic debugging unit is configured to automatically debug the matching network unit in accordance with the commands of the intelligent control unit.

Description

TECHNICAL AREA

The present application relates to the field of debugging in communication systems and, more particularly, to an intelligent debug system for debugging a medium wave matching network.

STATE OF THE ART

During the technical maintenance of the medium wave station, the regular inspection and troubleshooting of the antenna matching network is one of the most important tasks. This is because the antenna matching network is responsible for the important role of impedance matching between the medium wave broadcaster and the antenna, and the fact that their parameters match well is directly related to the normal transmission of broadcast signals. The antenna matching network is generally a complex serial-parallel network consisting of an inductor and a capacitance, where the capacitance value is generally fixed and debugging the antenna matching network is essentially adjusting the inductor or the adjustable capacitance to perform a circuit impedance transformation, to achieve a series resonance or a parallel resonance, with which the effective output of local signals and a blocking or filtering out of contamination signals are realized.

However, in present day matching experiments or specific work on the antenna matching network, a clamp is set to be movable by holding the inductance coil with human hands so that matching points are found all over the coil. Since the space of the transmitter case is small and the space of the coil is also small, handling is not easy and it is easy for hand to cut through the copper foil on the coil. Furthermore, because the radio frequency parameters vary widely, it is time consuming and inefficient to find the appropriate match points.

CONTENT OF THE PRESENT INVENTION

It is an object of the present invention to provide an intelligent debug system for debugging a medium wave matching network to solve the problem of the prior art: manual adjustment operations to the matching network for the medium wave emission system are inconvenient and time consuming and inefficient to find suitable points of coincidence, as furthermore the radio frequency parameters vary widely.

The present application is implemented by the following technical solutions: an intelligent debug system for debugging a medium wave matching network, comprising a test machine unit, a matching network unit, a dummy load unit, a parameter test unit, an automatic debugging unit and an intelligent control unit, wherein the matching network unit is connected to the test machine unit and the dummy load unit, the output of the adaptation network unit being connected to the parameter test unit, the output of the parameter test unit being connected to the intelligent control unit, the output of the intelligent control unit being connected to the automatic debugging unit, wherein the output of the automatic debug unit is connected to the matching network unit, wherein
the matching network unit forms a set of medium wave emission subsystems with the test machine unit and the dummy load unit in order to provide the operating parameters for the parameter test unit in the warm state;
wherein a parameter test unit is configured to test the operating parameters of the medium wave emission subsystem in a warm state and to send the operating parameters to the intelligent control unit;
wherein the intelligent control unit is designed to receive the operating parameters detected by the parameter test unit, to determine an operating state of the medium-wave emission subsystem and to position an element to be set and at the same time to control the automatic debugging unit in order to automatically debug the element to be set of the matching network unit, wherein the iterative control optimizes the operating parameters of the medium wave emission subsystem;
wherein the automatic debugging unit is configured to automatically debug the matching network unit in accordance with the commands of the intelligent control unit. It is preferably provided that the parameter test unit includes, but is not limited to, a network analyzer, an audio parameter synthesized tester, an oscilloscope, and a spectrum analyzer.

It is preferably provided that the intelligent control unit is a computer which is connected to the parameter test unit via a network interface, the network interface comprising an RS232 interface, an RS485 interface, a network connection or a CAN bus interface.

It is preferably provided that the automatic debugging unit is a control circuit which is connected to the element of the matching network unit to be set, the control circuit being a single-chip microcomputer, and a constant voltage power source, a reset circuit, a key circuit, a crystal oscillator, a display screen, a circuit interface and a Network interface electrically connected to the single chip microcomputer, wherein the circuit interface is connected to a debug execution component of the item to be adjusted, the network interface being connected to a computer, the element to be adjusted being an adjustable inductance or an adjustable capacitance.

It is preferably provided that the debugging execution component of the element to be set is a single-pole electronic multi-way switch which is electrically connected to the element to be set.

It is preferably provided that the debugging execution component of the element to be adjusted is a stepping motor which is electrically connected to the element to be adjusted, the stepping motor changing the value of the inductance or capacitance to be adjusted as a function of step pulses from the control circuit.

• das Gesamtsystem der vorliegenden Anmeldung bildet ein geschlossenes System, welches aus der Anpassungsnetzwerkeinheit, der Parametertesteinheit, der intelligenten Steuereinheit, der automatischen Fehlerbereinigungseinheit gebildet wird, wobei das einstellbare Element durch eine Datenbankabbildungssequenztabelle positioniert wird,
• wobei das einstellbare Element in Verbindung mit einer Schrittverstellung in geschlossener Schleife positioniert wird, wodurch schließlich die Effizienz der Fehlerbereinigung des gesamten Mittelwellen-Emissionssystems auf die besten Betriebsparameter erheblich beschleunigt und auch der Automatisierungsgrad des Mittelwellen-Emissionssystems verbessert wird.

Advantages of the present application are:

• the overall system of the present application forms a closed system which is formed from the adaptation network unit, the parameter test unit, the intelligent control unit, the automatic error correction unit, the adjustable element being positioned by a database mapping sequence table,
• wherein the adjustable element is positioned in connection with a step adjustment in a closed loop, as a result of which finally the efficiency of debugging the entire medium-wave emission system to the best operating parameters is considerably accelerated and the degree of automation of the medium-wave emission system is also improved.

Figure list

• 1 ist ein Blockdiagramm für das Prinzip eines Systems gemäß einem Ausführungsbeispiel der vorliegenden Anmeldung.
• 2 ist ein Blockdiagramm für das Prinzip einer automatischen Fehlerbereinigungseinheit gemäß einem Ausführungsbeispiel der vorliegenden Anmeldung.
• 3 ist ein Blockdiagramm für das Prinzip einer weiteren automatischen Fehlerbereinigungseinheit gemäß einem Ausführungsbeispiel der vorliegenden Anmeldung.
• 4 ist ein Ablaufdiagramm eines Verfahrens gemäß einem Ausführungsbeispiel der vorliegenden Anmeldung.

In order to explain the technical solution in the exemplary embodiments of the present application or in the prior art in more detail, the attached figures, which are required to describe the exemplary embodiments or the prior art, are briefly presented below.

• 1 Fig. 3 is a block diagram for the principle of a system according to an embodiment of the present application.
• 2 FIG. 3 is a block diagram for the principle of an automatic debug unit according to an exemplary embodiment of the present application.
• 3rd FIG. 3 is a block diagram for the principle of a further automatic error correction unit according to an exemplary embodiment of the present application.
• 4th Figure 3 is a flow chart of a method according to an embodiment of the present application.

DETAILED DESCRIPTION

The technical solutions in the exemplary embodiments in the present application are clearly and completely described below with the accompanying figures in the exemplary embodiments in the present application. Obviously, the exemplary embodiments described are only a part and not all of the exemplary embodiments of the present application. All other exemplary embodiments can be described by a person skilled in the art based on the exemplary embodiments of the present invention Applications obtained without creative efforts are intended to fall within the scope of the present application.

1 Fig. 3 is a block diagram for the principle of a system according to an embodiment of the present application.

As in 1 As shown, the present application provides an intelligent debug system for debugging a medium wave matching network, comprising a test machine unit, a matching network unit, a dummy load unit, a parameter test unit, an automatic debugging unit and an intelligent control unit, the matching network unit with the test machine unit and the dummy load unit is connected, the output of the adaptation network unit is connected to the parameter test unit, the output of the parameter test unit is connected to the intelligent control unit, the output of the intelligent control unit is connected to the automatic debugging unit, the output of the automatic Debug unit is connected to the matching network unit, wherein
the matching network unit forms a set of medium wave emission subsystems with the test machine unit and the dummy load unit in order to provide the operating parameters for the parameter test unit in the warm state;
wherein a parameter test unit is configured to test the operating parameters of the medium wave emission subsystem in a warm state and to send the operating parameters to the intelligent control unit;
wherein the intelligent control unit is designed to receive the operating parameters detected by the parameter test unit, to determine an operating state of the medium-wave emission subsystem and to position an element to be set and at the same time to control the automatic debugging unit in order to automatically debug the element to be set of the matching network unit, wherein the iterative control optimizes the operating parameters of the medium wave emission subsystem;
wherein the automatic debugging unit is configured to automatically debug the matching network unit in accordance with the commands of the intelligent control unit. In the present exemplary embodiment it is provided that the parameter test unit comprises, but is not limited to, a network analyzer, an audio parameter synthesized tester, an oscilloscope and a spectrum analyzer.

In the present exemplary embodiment it is provided that the intelligent control unit is a computer which is connected to the parameter test unit via a network interface, the network interface comprising an RS232 interface, an RS485 interface, a network connection or a CAN bus interface. In the present embodiment, the automatic debug unit is a control circuit connected to the item to be set of the matching network unit, the control circuit being a single-chip microcomputer, and a constant voltage power source, a reset circuit, a key circuit, a crystal oscillator, a display screen, a circuit interface and a network interface electrically connected to the single chip microcomputer, wherein the circuit interface is connected to a debug execution component of the item to be adjusted, the network interface being connected to a computer, the element to be adjusted being an adjustable inductance or an adjustable capacitance. 2 FIG. 3 is a block diagram for the principle of an automatic debug unit according to an exemplary embodiment of the present application.

How 2 shows, the debug execution component of the item to be set is a single pole electronic multi-way switch electrically connected to the item to be set, with the multi-way selection terminals each equally connected to the coils of the inductor to be set. In actual operation, the control circuit, the matrix switch (single-pole multi-way switch), the network analyzer are connected, then the key circuit is operated in such a way that the single-chip microcomputer controls the single-pole multi-way switch for continuous switching, with the display screen showing which line the single-pole multi-way switch switches, the wiring of the respective output connections of the adjustable inductance being connected and labeled, the labeling number corresponding to the number displayed on the display screen. As can be seen from the figures, the result of continuously switching the single-pole multi-way switch is that the inductance length of the adjustable inductance connected to the fixed network unit changes continuously, and the inductance value connected to the fixed network unit also changes continuously. In this way, the network analyzer detects that the parameters of the antenna matching network, which consists of the fixed network unit and the inductance to be set, change continuously, these parameters being the impedance value, the Direction angle, standing wave ratio, match points and the like, with electronic debugging stopped when the parameters displayed on the network analyzer reach a required value or a range around the required value during continuous adjustment of the button.

• das Einzelchip-Mikrocomputer ein STC89C52 verwendet, wobei der STC89C52 ein leistungsschwacher, leistungsstarker CMOS 8-Bit-Mikrocontroller mit einem systemintern programmierbaren 8K-Flash-Speicher ist. Auf einem einzelnen Chip besitzt das STC89C52 eine flexibles 8-Bit-CPU und einen systemintern programmierbarem Flash, was eine noch flexible, äußerst effektive Lösung für zahlreiche eingebettete Steueranwendungssysteme ermöglicht.

Fine tuning is then made based on the appropriate point found by the electronic debugger until the exact value for the demand value is reached. The individual parts in the present exemplary embodiment can be selected as follows:

• The single chip microcomputer uses an STC89C52, the STC89C52 being a low-performance, high-performance CMOS 8-bit microcontroller with an 8K flash memory that can be programmed internally. The STC89C52 has a flexible 8-bit CPU and a system-internal programmable flash on a single chip, which enables an even more flexible, extremely effective solution for numerous embedded control application systems.

The keyboard circuit uses a 4 * 4 matrix keyboard, also known as a row-column keyboard, which is a keyboard that has four I / O lines as row lines and four I / O lines as column lines . A key is arranged at each intersection of the row and column lines. The number of keys on the keyboard is thus 4X4. This row and column keyboard structure can effectively improve the I / O port utilization in a single chip microcomputer system. Since the I / O port in the single-chip microcomputer has a wired AND connection, a respective line in each row and column is AND-wired which, when any of the buttons is pressed, the Coordinates of the keys can be determined by an arithmetic operation to determine the key values of the keys.

The serial interface undergoes a MAX232 level conversion, the constant voltage power source is 5 V or 3.3 V and the display screen uses an LCD1602.

The single pole multiway switch is an analog switch chip CD4051, where the CD4051 consists of three parts, i.e. a logic level switching circuit, an 8-to-1 decoding circuit and 8 CMOS switching units, where A, B, C are the 3-bit binary output terminals and eight combinations of binary 3 bits can be used to select 8 channels; where INH is an address input disable terminal, and when it is high the output terminal is inactive, i.e. no channel is selected. The input levels of A, B, C and INH are compatible with TTL. The CD4051 has eight input / output terminals, one output / input terminal, a digital circuit supply + E and -E1 and an analog circuit supply + E and -E2. The main function of the logic level conversion circuit is to convert the TTL logic level inputted through the output terminals A, B, C and the address input disable terminal INH to the CMOS level so that the switching unit can be controlled by the TTL level. The main function of the 8-to-1 address decoding circuit is to convert the address input signal from the logic level conversion circuit into the corresponding switch unit selection signal and turn on the corresponding switch unit.

The network analyzer uses a PNA3628D vector network analyzer, which has a frequency range of 0.001 to 120MHZ, which is commonly used for measuring radio frequencies such as medium wave, short wave, frequency modulated broadcast, communications, radar radio frequency measurements, and sound meters and the like ; where a full frequency scan, a list scan and a point frequency measurement will take place.

3rd FIG. 3 is a block diagram for the principle of a further automatic error correction unit according to an exemplary embodiment of the present application.

How 3rd shows, the debug execution component of the element to be adjusted is a stepping motor electrically connected to the element to be adjusted, the stepping motor changing the value of the inductance or capacitance to be adjusted in response to step pulses from the control circuit. The structure and principle of the control circuit are partly the same as above and will not be described repeatedly. Especially for the stepper motor, ie the motor is controlled step by step forwards or backwards, the motor output is connected to the end of the setting of the inductance or capacitance to be set. A parameter value of the inductance to be set or the capacitance to be set is in turn set when the motor is rotated in the forward or reverse direction and thus the rotation of the end of the setting of the inductance or the set inductance the capacity to be set is controlled. In this way, the network analyzer detects that the parameters of the antenna matching network, which consists of the fixed network unit and the inductance to be set, change continuously, and these parameters can be the impedance size, the direction angle, the standing wave ratio, the points of correspondence and the like.

4th Figure 3 is a flow diagram of a method with a debug system of the present application.

• eine Fehlerbereinigungsdatenbank des Anpassungsnetzwerks im Warmzustand wird eingerichtet;
• die anfänglichen Betriebsparameter des Anpassungsnetzwerks des Mittelwellensystems im Warmzustand werden geprüft, die mit den Zielbetriebsparametern verglichen werden, um den Parameterdifferenzwert zu erhalten;
• das einzustellende Element des Anpassnetzwerks wird aus dem Betriebsparameterdifferenzwert in Verbindung mit der Fehlerbereinigungsdatenbank bestimmt;
• die Parameter des einzustellenden Elements werden verstellt, bis der Wert des Zielbetriebsparameters im Warmzustand erreicht ist, und die automatische Fehlerbereinigung abgeschlossen ist.

As in 4th As shown, the present application also provides an intelligent debugging method for debugging a medium wave matching network comprising the following steps:

• a debug database of the warm adaptation network is established;
• the initial operating parameters of the adaptation network of the medium wave system in the warm state are checked, which are compared with the target operating parameters to obtain the parameter difference value;
• the element of the matching network to be set is determined from the operating parameter difference value in connection with the error correction database;
• the parameters of the element to be set are adjusted until the value of the target operating parameter is reached in the warm state and the automatic error correction is completed.

In the present example it is provided that the debugging database is a mapping sequence table for the parameter values for each adjustable inductance and adjustable capacitance of the matching network and the operating parameters of the medium wave emission subsystem, and the parameter values for each adjustable inductance and adjustable capacitance of the medium wave emission subsystem in an optimal state is the operating parameter. The operating parameters include a series-parallel resonance, an incident power, a reflection power, a reflection coefficient, a harmonic distortion, a frequency response, a signal-to-noise ratio.

The corresponding values for the element parameters and the operating parameters in the above table are not specifically specified, only a framework is provided here which reflects the influences of the components of the matching network on the overall operating parameters of the medium-wave emission system. Although the component parameters of the matching network have more complicated effects on the work of the medium wave emission system and do not represent a simple functional relationship and a simple functional relationship is not established, the parameter "dictionary" of the entire medium wave emission system is however essentially formed if according to the framework of the table above, statistical information can be made that achieve a certain statistic, whereby a certain component can generally be positioned if a reference is provided for the intelligent control unit (e.g. one of the above operating parameters is abnormal) around the adjustable element (ie, an element that leads to a poor operating parameter of the medium wave emission system) to be quickly positioned in accordance with the overall operating condition of the medium wave emission system.

In the present example, a parameter setting of the element to be set also takes place, a step-by-step error correction method being used for parameter values for each adjustable inductance and adjustable capacitance, the step-by-step error correction method comprising a step-by-step increment and a step-by-step decrement. After roughly locating the adjustable item via the debug database mapping sequence table mentioned above, the debugging method is used to gradually approach the target parameters. For example, a stepper motor is used to perform step debugging with the property “a pulse goes one step”. In other words, every time the stepper motor receives a pulse signal, it rotates a fixed angle, i.e. the step angle, in the set direction, with the adjustable capacitance or inductance setting its current value once when the stepper motor turns an angle rotates, ie runs once, whereby the specific setting amount can be preset according to actual needs. The regulation of the capacitance value of the adjustable capacitance or the inductance value of the adjustable inductance in the matching network is achieved by the step-by-step error correction method, and thereby changing the entire functional behavior of the matching network is achieved. The functional properties to be achieved by the matching network include, among other things, a series resonance at an operating frequency, a parallel resonance at an operating frequency, filtering out the third order harmonic wave, input / output impedance conversion, blocking of interference frequencies and the like.

The overall system of the present application forms a closed system, which is formed from the adaptation network unit, the parameter test unit, the intelligent control unit, the automatic error correction unit, the adjustable element being positioned by the above-mentioned database mapping sequence table, the adjustable element in connection with a step adjustment in closed loop is positioned, which finally significantly accelerates the efficiency of debugging the entire medium-wave emission system to the best operating parameters and also improves the degree of automation of the medium-wave emission system.

Claims (9)

An intelligent debug system for debugging a medium wave matching network, characterized in that the debug system comprises a test machine unit, a matching network unit, a dummy load unit, a parameter test unit, an automatic debugging unit and an intelligent control unit, the matching network unit having the test machine unit and the dummy -Last unit is connected, wherein the output of the adaptation network unit is connected to the parameter test unit, the output of the parameter test unit is connected to the intelligent control unit, the output of the intelligent control unit is connected to the automatic debug unit, the output of the automatic debug unit with of the matching network unit, the matching network unit having a set of medium waves with the test machine unit and the dummy load unit Emission subsystems are designed to provide the operating parameters for the parameter test unit in the warm state; wherein a parameter test unit is configured to test the operating parameters of the medium wave emission subsystem in a warm state and to send the operating parameters to the intelligent control unit; wherein the intelligent control unit is designed to receive the operating parameters detected by the parameter test unit, to determine an operating state of the medium-wave emission subsystem and to position an element to be set and at the same time to control the automatic debugging unit in order to automatically debug the element to be set of the matching network unit, wherein the iterative control optimizes the operating parameters of the medium wave emission subsystem; wherein the automatic debugging unit is configured to automatically debug the matching network unit in accordance with the commands of the intelligent control unit. Intelligent debug system for debugging a medium wave matching network according to Claim 1 , characterized in that the parameter test unit comprises a network analyzer, an audio parameter synthesized tester, an oscilloscope and a spectrum analyzer. Intelligent debug system for debugging a medium wave matching network according to Claim 1 , characterized in that the intelligent control unit is a computer which is connected to the parameter test unit via a network interface. Intelligent debug system for debugging a medium wave matching network according to Claim 3 , characterized in that the network interface comprises an RS232 interface, an RS485 interface, a network connection or a CAN bus interface. Intelligent debug system for debugging a medium wave matching network according to Claim 1 , characterized in that the automatic debug unit is a control circuit connected to the element of the matching network unit to be set. Intelligent debug system for debugging a medium wave matching network according to Claim 5 , characterized in that the control circuit comprises a single chip microcomputer, and a constant voltage power source, a reset circuit, a key circuit, a crystal oscillator, a display screen, a circuit interface and a network interface, which are electrically connected to the single chip microcomputer. Intelligent debug system for debugging a medium wave matching network according to Claim 6 , characterized in that the circuit interface is connected to a debug execution component of the element to be adjusted, the network interface being connected to a computer, the element to be adjusted being an adjustable inductance or an adjustable capacitance. Intelligent debug system for debugging a medium wave matching network according to Claim 7 , characterized in that the debug execution component of the item to be adjusted is a single pole electronic multi-way switch which is electrically connected to the item to be adjusted. Intelligent debug system for debugging a medium wave matching network according to Claim 8 , characterized in that the debugging execution component of the element to be adjusted is a stepping motor electrically connected to the element to be adjusted, the stepping motor changing the value of the inductance or capacitance to be adjusted depending on step pulses of the control circuit.

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