CN106603139B - Wireless communication module extension fixture - Google Patents
Wireless communication module extension fixture Download PDFInfo
- Publication number
- CN106603139B CN106603139B CN201611192664.8A CN201611192664A CN106603139B CN 106603139 B CN106603139 B CN 106603139B CN 201611192664 A CN201611192664 A CN 201611192664A CN 106603139 B CN106603139 B CN 106603139B
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- wireless communication
- communication module
- circuit
- terminal
- interface
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- 238000004891 communication Methods 0.000 title claims abstract description 67
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- 230000009467 reduction Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 13
- 230000000087 stabilizing effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003985 ceramic capacitor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
- H04B1/0017—Digital filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a wireless communication module extension device which comprises interface equipment, a network cable connected with the interface equipment and external equipment connected with the network cable, wherein the external equipment is connected with a wireless communication module. The interface equipment comprises a first signal conversion circuit connected with a signal transceiving end of the terminal equipment, a first network interface connected with the first signal conversion circuit and a power supply end of the terminal equipment, and a power supply indicating device connected with one end of a network cable and the power supply end of the network cable. The external device comprises a second network interface connected with the other end of the network cable, a second signal conversion circuit connected with a signal transceiving end of the second network interface, and a power supply end of the wireless communication module is connected with a power supply end of the second network interface. The device realizes the communication of the terminal equipment and the wireless communication module at different positions, and when the terminal equipment is in a position where the terminal equipment cannot be connected with an external network, the wireless communication module is extended to a position where a signal is better, so that normal communication is realized.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a wireless communication module extension apparatus.
Background
With the improvement of the living standard of residents, the requirements for various technologies become more and more strict, and for places with poor signals, such as garages, basements and the like, wireless communication modules, such as GPRS modules, of terminal devices (such as meter readers or concentrators and the like) at the places cannot normally communicate with an external network, so that the acquisition devices cannot realize normal communication functions, such as transmission of monitoring data.
Therefore, in a place where a wireless signal is weak, how to implement communication between the acquisition device and an external network is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a wireless communication module extension device which is used for realizing communication between terminal equipment and an external network at a place where a wireless signal is weak.
In order to solve the technical problem, the invention provides a wireless communication module extension device, which comprises an interface device connected with a terminal device, a network cable connected with the interface device, and an external device connected with the network cable, wherein the external device is connected with a wireless communication module;
the interface device comprises a first signal conversion circuit connected with a signal transceiving end of the terminal device, and a first network interface connected with the first signal conversion circuit and a power supply end of the terminal device, wherein the first network interface is connected with one end of the network cable, and a power supply indicating device connected with the power supply end of the terminal device;
the external device comprises a second network interface connected with the other end of the network cable, and a second signal conversion circuit connected with a signal transceiving end of the second network interface, wherein a power end of the wireless communication module is connected with a power end of the second network interface;
the first signal conversion circuit and the second signal conversion circuit are used for performing analog-to-digital conversion or digital-to-analog conversion.
Preferably, the interface device further includes a voltage boosting circuit connected to the power supply terminal of the terminal device, and an output terminal of the voltage boosting circuit is connected to the power supply terminal of the first network interface.
Preferably, the external device further includes a voltage-reducing circuit connected to the power supply terminal of the second network interface, and an output terminal of the voltage-reducing circuit is connected to the power supply terminal of the wireless communication module.
Preferably, the boost circuit further comprises a first filter circuit connected with the output end of the boost circuit.
Preferably, the voltage reducing circuit further comprises a second filter circuit connected with the output end of the voltage reducing circuit.
Preferably, the external device further includes a voltage stabilizing circuit connected to a power end of the second network interface, and an output end of the voltage stabilizing circuit is connected to the power end of the wireless communication module.
Preferably, the power supply further comprises a first current boosting circuit connected with the output end of the boosting circuit.
Preferably, the power supply further comprises a second current boosting circuit connected to an output terminal of the voltage step-down circuit.
The wireless communication module extension device provided by the invention comprises interface equipment connected with terminal equipment, a network cable connected with the interface equipment, and external equipment connected with the network cable, wherein the external equipment is connected with a wireless communication module. The interface device comprises a first signal conversion circuit connected with a signal transceiving end of the terminal device, and a first network interface connected with the first signal conversion circuit and a power supply end of the terminal device, wherein the first network interface is connected with one end of a network cable. The external device comprises a second network interface connected with the other end of the network cable, a second signal conversion circuit connected with a signal transceiving end of the second network interface, and a power supply end of the wireless communication module is connected with a power supply end of the second network interface. The first signal conversion circuit and the second signal conversion circuit are used for converting analog signals and digital signals into each other. Therefore, the device can realize the communication of the terminal equipment and the wireless communication module at different positions, and the problem that the wireless communication module is extended to a position with better signals when the terminal equipment is in a position which is not connected with an external network is solved, so that the normal communication of the terminal equipment is realized.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a block diagram of an extension apparatus for a wireless communication module according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a first signal conversion circuit according to an embodiment of the present invention;
fig. 3 is a schematic interface diagram of a terminal device according to the present invention;
fig. 4 is a schematic diagram illustrating a connection between a voltage boosting circuit and a first network interface according to an embodiment of the present invention;
fig. 5 is a voltage step-down circuit diagram according to an embodiment of the present invention;
fig. 6 is a circuit diagram of a current boosting circuit according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
The core of the invention is to provide a wireless communication module extension device which is used for realizing the communication between the terminal equipment and the external network at the place where the wireless signal is weak.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural diagram of an extension apparatus of a wireless communication module according to an embodiment of the present invention, as shown in fig. 1, including an interface device 10 connected to a terminal device, a network cable 11 connected to the interface device 10, an external device 12 connected to the network cable 11, and the external device 12 connected to the wireless communication module.
The interface device 10 includes a first signal conversion circuit 100 connected to a signal transceiving terminal of the terminal device, a first network interface 101 connected to the first signal conversion circuit 100 and a power source terminal of the terminal device, the first network interface 101 connected to one end of the network cable 11, and a power indication device 103 connected to the power source terminal of the terminal device.
The external device 12 includes a second network interface 121 connected to the other end of the network cable 11, a second signal conversion circuit 120 connected to a signal transceiving end of the second network interface 121, and a power end of the wireless communication module is connected to a power end of the second network interface 121.
The first signal conversion circuit 100 and the second signal conversion circuit 120 are used for performing mutual conversion between a digital signal and an analog signal.
In a specific implementation, the terminal device may be of various types, such as a collector or a concentrator used in the power industry. The wireless communication module may be a GPRS module, but it is not limited to the GPRS module, and other types of communication modules are also possible. The signal that the terminal device can process is a digital signal, and the output signal is also a digital signal, and the first signal conversion circuit 100 functions to convert the digital signal into an analog signal. The terminal device has a receiving port and a transmitting port, i.e. the above-mentioned signal transceiving port, so that when receiving the digital signal of the terminal device, the first signal conversion circuit 100 achieves the purpose of converting the digital signal into the analog signal, and when receiving the analog signal of the external device, the first signal conversion circuit 100 achieves the purpose of converting the analog signal into the digital signal. Because the network cable 11 is arranged between the interface device and the external device 12, the wireless communication module can be placed at a place with better signals, and thus, a complete wireless communication device can be formed between the wireless communication module and the terminal device so as to be connected with an external network.
In a preferred embodiment, the power indicator 103 is a power indicator light.
The power indicator lamp can clearly indicate whether the power end of the terminal equipment is normally output. Preferably, the power indicator lamp can be an LED lamp, and has the characteristics of low power consumption and long service life. It is understood that the power indicator 103 may also be a buzzer or a combination of a buzzer and a power indicator, and the description of this embodiment is omitted.
Fig. 2 is a circuit diagram of a first signal conversion circuit according to an embodiment of the present invention. The conversion chip D11 of the first signal conversion circuit 100 may be an ADM3232EARN chip, which is understood to be only one embodiment. The first signal conversion circuit 100 has two sets of transceiving ports, which are a transmitting interface RXD0, a receiving interface TXD0, a transmitting interface RXD, and a receiving interface TXD.
It can be understood that the maximum length of the network cable can reach 60 meters, and the network cable can be selected according to actual needs and network cable cost. In addition, the second signal conversion circuit 120 is similar to the first signal conversion circuit 100, and the description thereof is omitted in this embodiment.
The wireless communication module extension device provided by this embodiment includes an interface device connected to the terminal device, a network cable connected to the interface device, and an external device connected to the network cable, where the external device is connected to the wireless communication module. The interface equipment comprises a first signal conversion circuit connected with a signal transceiving end of the terminal equipment, a first network interface connected with the first signal conversion circuit and a power supply end of the terminal equipment, wherein the first network interface is connected with one end of a network cable, and a power supply indicating device connected with the power supply end of the terminal equipment. The external device comprises a second network interface connected with the other end of the network cable, a second signal conversion circuit connected with a signal transceiving end of the second network interface, and a power supply end of the wireless communication module is connected with a power supply end of the second network interface. The first signal conversion circuit and the second signal conversion circuit are used for converting analog signals and digital signals into each other. Therefore, the device can realize the communication of the terminal equipment and the wireless communication module at different positions, and the problem that the wireless communication module is extended to the position with better signal when the terminal equipment is in the position where the terminal equipment cannot be connected with an external network is solved, so that the normal communication of the terminal equipment is realized.
If the voltage of the power end of the terminal device is low, a certain loss occurs after the transmission of the network cable 11, which results in the wireless communication module being unable to be used normally. Therefore, to overcome this problem, the interface device 10 further includes a booster circuit 102 connected to the power supply terminal of the terminal device, and an output terminal of the booster circuit 102 is connected to the power supply terminal of the first network interface 101. Fig. 3 is a schematic interface diagram of a terminal device according to the present invention. Fig. 4 is a schematic diagram of a connection between a voltage boosting circuit and a first network interface according to an embodiment of the present invention.
The terminal device has a power supply terminal VCC4.2, a transmission interface RXD0, a reception interface TXD0, a reset pin RST, and a switch pin ON/OFF. The power supply terminal VCC4.2 of the terminal device is connected to the input terminal of the voltage boost circuit 102, and the conversion chip U0 used in the voltage boost circuit 102 is an FP6291 chip, it should be understood that the FP6291 chip is selected as a specific implementation, and does not represent only this implementation. The first network interface 101 has a transmit interface RXD, a receive interface TXD, a reset pin RST, and a switch pin ON/OFF. The output VCC12 of the voltage boost circuit 102 is connected to the power supply terminal of the first network interface 101. Referring to fig. 3, a specific circuit diagram of the boost circuit 102 is shown, and the operation principle is not described in detail. The first network interface 101 may be an RJ45 interface.
It should be noted that, in order to facilitate later-stage upgrade and modification, two ports, that is, NC pins in the first network port interface 101, are reserved while ensuring normal communication between the terminal device and the wireless communication module. As a preferred embodiment, the voltage boosting circuit further includes a first filter circuit connected to the output terminal of the voltage boosting circuit 102. The first filter circuit filters the input signal, so that the influence of interference signals can be reduced.
When the voltage boosting of the voltage boosting circuit 102 is large, a voltage step-down circuit needs to be provided in the external device 12 accordingly. It can be understood that the output voltage value of the voltage reduction circuit needs to be determined according to the voltage required by the wireless communication module, and in addition, if different output voltages of the voltage reduction circuit need to be set, the voltage reduction circuit can be flexibly set according to the element parameters of the voltage reduction circuit. The second network interface 121 is similar to the first network interface 101, and is not described in detail in this embodiment. Fig. 5 is a voltage step-down circuit diagram according to an embodiment of the present invention. In one embodiment, the voltage reduction circuit may be implemented with the power chip U1 as MP 2359. An input terminal VCC12 of the voltage-reducing circuit is connected to a power supply terminal of the second network interface 121, and an output terminal VCC4.2 is connected to a power supply terminal of the wireless communication module.
As a preferred embodiment, the voltage reducing circuit further includes a second filter circuit connected to an output terminal of the voltage reducing circuit. The second filter circuit filters the input signal, and the influence of interference signals can be reduced.
As a preferred embodiment, the external device 12 further includes a voltage stabilizing circuit connected to the power end of the second network interface 121, and an output end of the voltage stabilizing circuit is connected to the power end of the wireless communication module.
When the output voltage of the terminal equipment meets the voltage required by the wireless communication module, a voltage boosting circuit or a voltage reducing circuit is not added, but the power supply scheme is recommended to be used in order to ensure the normal work of any wireless module. A voltage stabilizing circuit is further disposed in the external device 12, and the voltage stabilizing circuit may be an ASM117 voltage stabilizing chip, and the voltage stabilizing circuit provides a voltage of 3.3V for the signal conversion chip.
In addition to the above-described embodiments, as a preferred embodiment, the power supply further includes a first current boost circuit connected to the output terminal of the voltage boost circuit 102.
Fig. 6 is a circuit diagram of a current boosting circuit according to an embodiment of the invention. As shown in fig. 6, the wireless communication module comprises 5 parallel ceramic capacitors, and the energy storage characteristics of the ceramic capacitors enable the current signal at the output end to satisfy the peak current required by the on-line dialing of the wireless communication module.
In addition to the above-described embodiments, as a preferred embodiment, the power supply further includes a second current boost circuit connected to an output terminal of the voltage step-down circuit.
The second current boost circuit is the same as the first current boost circuit, and the description thereof is omitted.
The wireless communication module extension apparatus provided by the present invention is described in detail above. The embodiments are described in a progressive mode in the specification, the emphasis of each embodiment is on the difference from the other embodiments, and the same and similar parts among the embodiments can be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A wireless communication module extension device is characterized by comprising interface equipment connected with terminal equipment, a network cable connected with the interface equipment, and external equipment connected with the network cable, wherein the external equipment is connected with a wireless communication module;
the interface equipment comprises a first signal conversion circuit connected with a signal transceiving end of the terminal equipment, and a first network interface connected with the first signal conversion circuit and a power end of the terminal equipment, wherein the first network interface is connected with one end of the network cable, and a power indicator connected with the power end of the terminal equipment;
the external device comprises a second network interface connected with the other end of the network cable, and a second signal conversion circuit connected with a signal transceiving end of the second network interface, wherein a power end of the wireless communication module is connected with a power end of the second network interface;
the first signal conversion circuit and the second signal conversion circuit are used for performing mutual conversion of digital signals and analog signals;
the interface device further comprises a booster circuit connected with the power supply end of the terminal device, and the output end of the booster circuit is connected with the power supply end of the first network interface.
2. The wireless communication module extension device of claim 1, wherein the external device further comprises a voltage-reducing circuit connected to the power terminal of the second network interface, and an output terminal of the voltage-reducing circuit is connected to the power terminal of the wireless communication module.
3. The wireless communication module extension arrangement of claim 1, further comprising a first filter circuit connected to an output of the boost circuit.
4. The wireless communication module extension of claim 2, further comprising a second filter circuit coupled to an output of the voltage reduction circuit.
5. The wireless communication module extension device of claim 1, wherein the external device further comprises a voltage regulator circuit connected to the power terminal of the second network interface, and an output terminal of the voltage regulator circuit is connected to the power terminal of the wireless communication module.
6. The wireless communication module extension of claim 1, further comprising a first current boost circuit coupled to the output of the boost circuit.
7. The wireless communication module extension of claim 2, further comprising a second current boost circuit coupled to the output of the voltage step-down circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611192664.8A CN106603139B (en) | 2016-12-21 | 2016-12-21 | Wireless communication module extension fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611192664.8A CN106603139B (en) | 2016-12-21 | 2016-12-21 | Wireless communication module extension fixture |
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| CN106603139A CN106603139A (en) | 2017-04-26 |
| CN106603139B true CN106603139B (en) | 2022-08-26 |
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| CN201611192664.8A Active CN106603139B (en) | 2016-12-21 | 2016-12-21 | Wireless communication module extension fixture |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0782311A2 (en) * | 1995-12-12 | 1997-07-02 | AT&T Corp. | Method for monitoring signaling messages in a telecommunications network |
| CN1650653A (en) * | 2002-03-04 | 2005-08-03 | 阿兹穆斯网络公司 | Test system for simulating a wireless environment and method of using same |
| CN202217267U (en) * | 2011-08-26 | 2012-05-09 | 深圳市中银科技有限公司 | Signal transmission structure of multi touch screen |
| CN105721815A (en) * | 2016-04-20 | 2016-06-29 | 北京市瑞泽胜为科技有限公司 | HDMI (High Definition Multimedia Interface) conversion system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10057942B2 (en) * | 2015-03-20 | 2018-08-21 | Qualcomm Incorporated | Data transfer using non-radio frequency (RF) and RF signals |
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2016
- 2016-12-21 CN CN201611192664.8A patent/CN106603139B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0782311A2 (en) * | 1995-12-12 | 1997-07-02 | AT&T Corp. | Method for monitoring signaling messages in a telecommunications network |
| CN1650653A (en) * | 2002-03-04 | 2005-08-03 | 阿兹穆斯网络公司 | Test system for simulating a wireless environment and method of using same |
| CN202217267U (en) * | 2011-08-26 | 2012-05-09 | 深圳市中银科技有限公司 | Signal transmission structure of multi touch screen |
| CN105721815A (en) * | 2016-04-20 | 2016-06-29 | 北京市瑞泽胜为科技有限公司 | HDMI (High Definition Multimedia Interface) conversion system and method |
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| CN106603139A (en) | 2017-04-26 |
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