Short message modem communication device

Abstract

The application relates to a short message modem communication device, a power supply circuit is electrically connected with a direct current power supply, and the power supply circuit outputs a direct current constant voltage power supply. The power supply circuit can output a voltage of 3.3 volts, can output a voltage of 3.8 volts, and can also output a voltage of 5 volts. By receiving the electric energy of the power supply circuit, the radio frequency circuit accesses a communication base station by using the information circuit and the positioning circuit, so that electromagnetic wave transmission of information carrying short messages or long messages is realized. Based on the first transponder and the second transponder, communication relay of the first communication circuit and the second communication circuit can be realized, and 485 communication or Ethernet communication is further realized. The short message modem overcomes the defect that a traditional short message modem is low in portability. By connecting the information circuit of the communication card, the positioning circuit can be connected with a communication base station through the radio frequency circuit, so that the defect that the short message modem communication device cannot work independently is overcome.

Description

Technical Field

[0001] This application relates to the technical field of communication devices, and particularly to a SMS modem communication device. Background Art

[0002] Traditional SMS modems use communication lines to communicate with a host computer. Their main function is to receive short messages or long messages composed of multiple short messages, upload the SMS content to the host computer, and perform group SMS tasks through the server of the communication operator connected to the host computer. Traditional SMS modems require a large number of supporting devices to execute group SMS tasks, which greatly limits the portability of the SMS modem. Therefore, it is necessary to propose a SMS modem communication device to address the defect of the low portability of traditional SMS modems. Utility Model Content

[0003] Based on this, it is necessary to propose a SMS modem communication device to address the defect of the low portability of traditional SMS modems.

[0004] This application relates to a SMS modem communication device, which is electrically connected to a DC power supply and a communication card, and includes:

[0005] A power supply circuit, including a filtering circuit, a first voltage circuit, and a second voltage circuit. The filtering circuit is electrically connected to the DC power supply, the filtering circuit is electrically connected to the first voltage circuit, and the first voltage circuit is electrically connected to the second voltage circuit;

[0006] A level transponder, including a first transponder and a second transponder. The first transponder is electrically connected to the first voltage circuit, and the second transponder is electrically connected to the second voltage circuit;

[0007] A radio frequency circuit, electrically connected to the second responder;

[0008] A first communication circuit, electrically connected to the first transponder, and the first communication circuit is electrically connected to the second voltage circuit;

[0009] A second communication circuit, electrically connected to the second transponder, the second communication circuit is electrically connected to the first voltage circuit, and the second communication circuit is electrically connected to the second voltage circuit;

[0010] A positioning circuit, electrically connected to the second transponder, and the positioning circuit is electrically connected to the second voltage circuit;

[0011] An information circuit, electrically connected to the second transponder.

[0012] This application relates to a short message modem communication device. The power supply circuit is electrically connected to a DC power supply, and the power supply circuit outputs a DC constant voltage power supply. The power supply circuit can output a voltage of 3.3 volts, can output a voltage of 3.8 volts, or can also output a voltage of 5 volts. By receiving the electrical energy of the power supply circuit, the radio frequency circuit accesses the communication base station by using the information circuit and the positioning circuit, and realizes the transmission of electromagnetic waves carrying short message information or long message information. Based on the first transponder and the second transponder, communication relay between the first communication circuit and the second communication circuit can be realized, and further 485 communication or Ethernet communication can be realized. This solves the defect of the low portability of traditional short message modems. By connecting the information circuit of the communication card, the positioning circuit can be connected to the communication base station through the radio frequency circuit, which solves the drawback that the short message modem communication device cannot work independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic connection structure diagram of a short message modem communication device provided by an embodiment of the present application.

[0014] Figure 2 FIG. is a schematic circuit connection relationship diagram of a level transponder and a first communication circuit of a short message modem communication device provided by an embodiment of the present application.

[0015] Figure 3 FIG. is a schematic circuit connection relationship diagram of a communication card, a positioning circuit and an information circuit of a short message modem communication device provided by an embodiment of the present application.

[0016] Figure 4 FIG. is a schematic circuit connection relationship diagram of a DC power supply and a power supply circuit of a short message modem communication device provided by an embodiment of the present application.

[0017] Reference Signs:

[0018] a - DC power supply; b - communication card;

[0019] 100 - power supply circuit; 110 - filtering circuit; 111 - diode; 112 - electrolytic filtering capacitor;

[0020] 113 - solid-state filtering capacitor; 120 - first voltage circuit; 121 - first step-down chip;

[0021] 122 - second step-down chip; 130 - second voltage circuit; 131 - third step-down chip;

[0022] 200 - level transponder; 210 - first transponder; 220 - second transponder; 221 - signaler;

[0023] 222 - PNP type triode; 230 - clock; 300 - radio frequency circuit; 400 - first communication circuit;

[0024] 410 - Relay chip; 420 - Communication connector; 500 - Second communication circuit; 600 - Positioning circuit;

[0025] 610 - Positioning chip; 620 - Signal source connector; 700 - Information circuit; 710 - Communication card socket;

[0026] 720 - Lightning protection circuit. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] The present application provides a SMS modem communication device.

[0029] As Figure 1 , Figure 3 and Figure 4 shown, in an embodiment of the present application, a SMS modem communication device, electrically connected to a DC power supply a and electrically connected to a communication card b, includes a power supply circuit 100, a level responder 200, a radio frequency circuit 300, a first communication circuit 400, a second communication circuit 500, a positioning circuit 600, and an information circuit 700.

[0030] The power supply circuit 100 includes a filtering circuit 110, a first voltage circuit 120, and a second voltage circuit 130. The filtering circuit 110 is electrically connected to the DC power supply, the filtering circuit 110 is electrically connected to the first voltage circuit 120, and the first voltage circuit 120 is electrically connected to the second voltage circuit 130.

[0031] Specifically, as Figure 4 shown, the first voltage circuit 120 and the second voltage circuit 130 are electrically connected to each other.

[0032] The level responder 200 includes a first responder 210 and a second responder 220. The first responder 210 is electrically connected to the first voltage circuit 120, and the second responder 220 is electrically connected to the second voltage circuit 130.

[0033] The radio frequency circuit 300 is electrically connected to the second responder 220.

[0034] The first communication circuit 400 is electrically connected to the first responder 210, and the first communication circuit 400 is electrically connected to the second voltage circuit 130.

[0035] The second communication circuit 500 is electrically connected to the second transponder 220, the second communication circuit 500 is electrically connected to the first voltage circuit 120, and the second communication circuit 500 is electrically connected to the second voltage circuit 130.

[0036] It is worth mentioning that, as Figure 4 shown, the 5V output terminal of the first step-down chip 121 can supply power to the second communication circuit 500, the 3.8V output terminal of the second step-down chip 122 can supply power to the information circuit 700, and the 3.3V output terminal of the third step-down chip 131 can supply power to the second communication circuit 500.

[0037] Specifically, the second communication circuit can communicate with the first transponder 210 using the RS485 communication protocol, increasing the communication interface of the SMS modem communication device and improving the communication adaptation ability of the SMS modem communication device.

[0038] The positioning circuit 600 is electrically connected to the second transponder 220, and the positioning circuit 600 is electrically connected to the second voltage circuit 130.

[0039] The information circuit 700 is electrically connected to the second transponder 220.

[0040] This embodiment relates to an SMS modem communication device. The power supply circuit 100 is electrically connected to a DC power supply, and the power supply circuit 100 outputs a DC constant voltage power supply. The power supply circuit 100 can output a voltage of 3.3V, a voltage of 3.8V, or a voltage of 5V. By receiving the electrical energy from the power supply circuit 100, the radio frequency circuit 300 accesses a communication base station using the information circuit 700 and the positioning circuit 600 to realize the transmission of electromagnetic waves carrying short message information or long message information. Based on the first transponder 210 and the second transponder 220, communication relay between the first communication circuit 400 and the second communication circuit 500 can be realized, and thus 485 communication or Ethernet communication can be realized. This solves the defect of low portability of traditional SMS modems. By connecting the information circuit 700 of the communication card, the positioning circuit 600 can be connected to the communication base station through the radio frequency circuit 300, which solves the drawback that the SMS modem communication device cannot work independently.

[0041] As Figure 3 shown, in an embodiment of the present application, the positioning circuit 600 includes a positioning chip 610 and a signal source connector 620. The signal source connector 620 is electrically connected to the positioning chip 610. The positioning chip 610 is electrically connected to the second transponder 220.

[0042] Specifically, the signal source connector 620 is actually a connector for a radio frequency antenna. By receiving the level signal from the positioning chip 610, the signal source connector 620 can convert the level signal into an electromagnetic wave signal. One of the functions of the positioning chip 610 is to receive the level signal of the message content and convert the level signal of the message content into a level signal for transmitting electromagnetic wave signals.

[0043] As Figure 3 shown, in an embodiment of the present application, the information circuit 700 includes a communication card socket 710 and a lightning protection circuit 720. The communication card socket 710 is electrically connected to the communication card b. The communication card socket 710 is electrically connected to the positioning chip 610. The positioning chip 610 is electrically connected to the lightning protection circuit 720.

[0044] Specifically, since the communication base station needs to verify the level signal of the identity when receiving the electromagnetic wave signal, it is necessary to use the communication card socket 710 to electrically connect to the communication card b. When the communication card socket 710 is electrically connected to the positioning chip 610, the positioning chip 610 can receive the level signal for verifying the identity.

[0045] Since the bandwidth for accommodating the electromagnetic wave signal of the signal source connector 620 is relatively large, in order to prevent the surge of the level signal caused by the large-energy electromagnetic wave, the positioning chip 610 is electrically connected to the lightning protection circuit 720. The lightning protection circuit 720 can prevent the positioning chip 610 and the communication card from being damaged.

[0046] As Figure 2 shown, in an embodiment of the present application, the first communication circuit 400 includes a relay chip 410 and a communication connector 420. The relay chip 410 is electrically connected to the first transponder 210. The relay chip 410 is electrically connected to the communication connector 420.

[0047] Specifically, the relay chip 410 can select a communication chip of model DP83848K. The relay chip 410 is electrically connected to the first transponder 210, and the first transponder 210 can select a level transponder 200 of model M6GXC. The communication connector 420 is an Ethernet communication receiving device of model HR911105A. The communication connector 420 is conducive to the first transponder 210 receiving the level signal in the Ethernet transmission format, which improves the communication adaptability of the SMS modem communication device.

[0048] It is worth mentioning that the level transponder 200 further includes a second transponder 220. Since the level transponder 200 itself is a level transponder 200 of model M6GXC, the second transponder 220 serves as the B seat of the level transponder 200 of M6GXC, and the second transponder 220 can implement WiFi communication. The first transponder 210 is actually the A seat of the level transponder 200 of M6GXC, and the first transponder 210 can communicate using the RS485 communication protocol.

[0049] As Figure 2 shown, in an embodiment of the present application, the second transponder 220 includes a signaler 221 and a PNP type triode 222. The drain of the PNP type triode 222 is electrically connected to the second voltage circuit 130. The drain of the PNP type triode 222 is electrically connected to the signal terminal of the signaler 221. The source of the PNP type triode 222 is grounded.

[0050] In an embodiment of the present application, both the negative electrode and the positive electrode of the signaler 221 are electrically connected to the base of the PNP type triode 222.

[0051] Specifically, in order to adjust the reference signal level of the level transponder 200, the second transponder 220 uses the signaler 221 and the PNP type triode 222 to perform the adjustment of the reference signal level.

[0052] In an embodiment of the present application, the level transponder 200 further includes a clock generator 230. The clock generator 230 is electrically connected to the first transponder 210.

[0053] Specifically, the level transponder 200 supports high-speed communication methods such as SPI communication (i.e., Serial Peripheral Interface), Ethernet communication, UART communication (i.e., Universal Asynchronous Receiver / Transmitter), and I2C communication, so a relatively accurate clock signal is required.

[0054] As Figure 4 shown, in an embodiment of the present application, the filter circuit 110 includes a diode 111, an electrolytic filter capacitor 112, and a solid-state filter capacitor 113. The positive electrode of the DC power supply a is electrically connected to the positive electrode of the diode 111. The negative electrode of the diode 111 is electrically connected to the positive electrode of the electrolytic filter capacitor 112. The negative electrode of the diode 111 is also electrically connected to the positive electrode of the solid-state filter capacitor 113. The negative electrode of the electrolytic filter capacitor 112 is grounded. The negative electrode of the solid-state filter capacitor 113 is grounded.

[0055] Specifically, the filtering circuit 110 realizes unidirectional filtering through the diode 111, and uses the electrolytic filtering capacitor 112 and the solid-state filtering capacitor 113 to perform clutter removal operations on voltage and current, thereby improving the power quality.

[0056] Please continue to refer to Figure 4 In an embodiment of the present application, the first voltage circuit 120 includes a first step-down chip 121 and a second step-down chip 122. The input end of the first step-down chip 121 is electrically connected to the negative electrode of the diode 111. The output end of the first step-down chip 121 is electrically connected to the first transponder 210. The output end of the first step-down chip 121 is electrically connected to the second communication circuit 500. The input end of the second step-down chip 122 is electrically connected to the negative electrode of the diode 111. The output end of the second step-down chip 122 is electrically connected to the information circuit 700.

[0057] Specifically, after the current and voltage of the DC power supply a pass through the filtering circuit 110, the output voltage of the filtering circuit 110 is 12 volts. The first step-down chip 121 can reduce the output voltage to 5 volts. The 5 volts output by the first step-down chip 121 can provide electrical energy for the first transponder 210 and the second communication circuit 500.

[0058] The input end of the second step-down chip 122 is electrically connected to the filtering circuit 110, and can step down the 12-volt output voltage output by the filtering circuit 110 to 3.8 volts. The 3.8 volts output by the second step-down chip 122 can provide power for the information circuit 700.

[0059] The input end of the third step-down chip 131 is electrically connected to the output end of the first step-down chip 121, and can step down the 5-volt output voltage to 3.3 volts.

[0060] The second voltage circuit 130 includes a third step-down chip 131. The first step-down chip 121 is electrically connected to the third step-down chip 131. The third step-down chip 131 is electrically connected to the first communication circuit 400. The third step-down chip 131 is electrically connected to the second communication circuit 500.

[0061] The technical features of the above-described embodiments can be combined arbitrarily, and there is no limitation on the execution order of the method steps. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0062] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A short message modem communication device, electrically connected to a DC power supply and a communication card, characterized in that: include: A power supply circuit, comprising a filter circuit, a first voltage circuit and a second voltage circuit, wherein the filter circuit is electrically connected to a DC power supply, the filter circuit is electrically connected to the first voltage circuit, and the first voltage circuit is electrically connected to the second voltage circuit; A level transponder, comprising a first transponder and a second transponder, wherein the first transponder is electrically connected to the first voltage circuit, and the second transponder is electrically connected to the second voltage circuit; a radio frequency circuit, electrically connected to the second answer; a first communication circuit electrically connected to the first transponder, the first communication circuit electrically connected to the second voltage circuit; a second communication circuit electrically connected to the second transponder, the second communication circuit electrically connected to the first voltage circuit, and the second communication circuit electrically connected to the second voltage circuit; a positioning circuit electrically connected to the second transponder, the positioning circuit electrically connected to the second voltage circuit; The information circuit is electrically connected to the second transponder.

2. The SMS cat communication device according to claim 1, characterized in that: The positioning circuit includes a positioning chip and a signal source connector; The signal source connector is electrically connected to the positioning chip; The positioning chip is electrically connected to the second transponder.

3. The SMS cat communication device according to claim 2, characterized in that: The information circuit includes a communication card socket and a lightning protection circuit; The communication card socket is electrically connected to the communication card; The communication card holder is electrically connected to the positioning chip; The positioning chip is electrically connected to the lightning protection circuit.

4. The SMS cat communication device according to claim 3, characterized in that: The first communication circuit includes a relay chip and a communication connector; The relay chip is electrically connected to the first transponder; The relay chip is electrically connected to the communication connector.

5. The SMS cat communication device according to claim 4, characterized in that: The second transponder includes a signalizer and a PNP type transistor; The drain of the PNP transistor is electrically connected to the second voltage circuit; The drain of the PNP transistor is electrically connected to the signal terminal of the signal device; The source of the PNP transistor is grounded.

6. The SMS cat communication device according to claim 5, characterized in that: The cathode and anode of the signal device are electrically connected to the base of the PNP transistor.

7. The SMS cat communication device according to claim 6, characterized in that: The level responder also includes a clock; The clock is electrically connected to the first transponder.

8. The SMS cat communication device according to claim 1, characterized in that: The filter circuit includes a diode, an electrolytic filter capacitor and a solid-state filter capacitor; The positive electrode of the DC power supply is electrically connected to the positive electrode of the diode; The cathode of the diode is electrically connected to the anode of the electrolytic filter capacitor; The cathode of the diode is electrically connected to the anode of the solid-state filter capacitor; The negative electrode of the electrolytic filter capacitor is grounded; The negative electrode of the solid-state filter capacitor is grounded.

9. The SMS cat communication device according to claim 8, characterized in that: The first voltage circuit includes a first buck chip and a second buck chip; The input end of the first buck chip is electrically connected to the cathode of the diode; The output end of the first step-down chip is electrically connected to the first transponder; The output end of the first step-down chip is electrically connected to the second communication circuit; The input end of the second buck chip is electrically connected to the cathode of the diode; The output end of the second step-down chip is electrically connected to the information circuit.

10. The SMS cat communication device according to claim 9, characterized in that: The second voltage circuit includes a third step-down chip; The first buck chip is electrically connected to the third buck chip; The third step-down chip is electrically connected to the first communication circuit; The third step-down chip is electrically connected to the second communication circuit.

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