CN210667163U - Data communication device - Google Patents
Data communication device Download PDFInfo
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- CN210667163U CN210667163U CN201922330244.7U CN201922330244U CN210667163U CN 210667163 U CN210667163 U CN 210667163U CN 201922330244 U CN201922330244 U CN 201922330244U CN 210667163 U CN210667163 U CN 210667163U
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Abstract
The embodiment of the utility model discloses data communication device. The device includes: the first voltage input end is connected with a power supply voltage pin of the controller area network CAN transceiver, one end of a first capacitor and one end of a second capacitor; the other ends of the first capacitor and the second capacitor are grounded; the standby mode control input pin of the CAN transceiver is connected with one end of the first resistor; the other end of the first resistor is grounded; a high-level CAN bus pin of the CAN transceiver is connected with one end of a second resistor and one end of a common mode choke coil; the other end of the second resistor is connected with a third capacitor, one end of a third resistor and a common-mode stable output pin of the CAN transceiver; the other end of the third resistor is connected with a low-level CAN bus pin of the CAN transceiver and the other end of the common mode choke coil; and the other end of the third capacitor is grounded. Use the embodiment of the utility model provides a scheme can transmit the moment of torsion measured value.
Description
Technical Field
The utility model relates to a torque measurement technical field particularly, relates to a data communication device.
Background
With the development of the domestic automobile industry, new models come to the fore, and automobile bench and road tests become more and more important. Modern engines need to increase the rotating speed to improve the mechanical performance and efficiency, and the torque is an important index of the performance of the motor and the engine, so that high-precision and high-reliability torque measurement is needed. And the obtained torque measurement value needs to be transmitted to a display device for display. Therefore, a data communication device is needed to transmit the torque measurement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a data communication device to realize the transmission of moment of torsion measured value. The specific technical scheme is as follows.
In a first aspect, an embodiment of the present invention provides a data communication apparatus, including:
the first voltage input end is connected with a power supply voltage pin of the controller area network CAN transceiver, one end of a first capacitor and one end of a second capacitor;
the other ends of the first capacitor and the second capacitor are grounded;
the standby mode control input pin of the CAN transceiver is connected with one end of the first resistor; the other end of the first resistor is grounded;
a high-level CAN bus pin of the CAN transceiver is connected with one end of a second resistor and one end of a common mode choke coil;
the other end of the second resistor is connected with a third capacitor, one end of a third resistor and a common-mode stable output pin of the CAN transceiver;
the other end of the third resistor is connected with a low-level CAN bus pin of the CAN transceiver and the other end of the common mode choke coil;
and the other end of the third capacitor is grounded.
Optionally, the method further includes: a voltage conversion device;
the voltage output end of the voltage conversion device is connected with the first voltage input end;
and the voltage of a second voltage input end of the voltage conversion device is 6-32 volts, and the voltage of a voltage output end of the voltage conversion device is 5 volts.
Optionally, the voltage conversion apparatus includes:
the second voltage input end is connected with the fourth capacitor, one end of the fourth resistor and a voltage input pin of the switching regulator;
the other end of the fourth capacitor is grounded; the other end of the fourth resistor is connected with an enabling input pin and a disabling input pin of the switching regulator; the ground pin of the switching regulator is grounded;
a bootstrap voltage pin of the switching regulator is connected with one end of a fifth capacitor; the other end of the fifth capacitor is connected with a switch node pin of the switching regulator, one end of the inductor and the cathode of the diode;
the anode of the diode is grounded; the other end of the inductor is connected with one end of a fifth resistor, a sixth capacitor, a seventh capacitor, one end of an eighth capacitor and the voltage output end;
the other end of the fifth resistor is connected with one end of a sixth resistor and a feedback pin of the switching regulator; the other end of the sixth resistor is grounded;
and the other ends of the sixth capacitor, the seventh capacitor and the eighth capacitor are all grounded.
Optionally, the fourth capacitance is 4.7 microfarads; the fifth capacitor is 100 nanofarads; the sixth capacitor is 10 microfarads; the seventh capacitor is 10 microfarads; the eighth capacitance is 100 nanofarads.
Optionally, the fourth resistance is 100 kilo-ohms; the fifth resistance is 54.9 kilo-ohms; the sixth resistance is 10 kilo-ohms.
Optionally, the inductance is 33 microhenries.
Optionally, the diode is MBR0520LT 1G.
Optionally, the first resistance is 10 kilo-ohms; the second resistance is 60.4 ohms and the third resistance is 60.4 ohms.
Optionally, the first capacitance is 10 microfarads; the second capacitance is 100 nanofarads; the third capacitance is 1 nanofarad.
Optionally, the CAN transceiver is TJA 1040.
As can be seen from the above, the data communication device provided by the embodiment of the present invention may include: the first voltage input end is connected with a power supply voltage pin of the controller area network CAN transceiver, one end of a first capacitor and one end of a second capacitor; the other ends of the first capacitor and the second capacitor are grounded; the standby mode control input pin of the CAN transceiver is connected with one end of the first resistor; the other end of the first resistor is grounded; a high-level CAN bus pin of the CAN transceiver is connected with one end of a second resistor and one end of a common mode choke coil; the other end of the second resistor is connected with a third capacitor, one end of a third resistor and a common-mode stable output pin of the CAN transceiver; the other end of the third resistor is connected with a low-level CAN bus pin of the CAN transceiver and the other end of the common mode choke coil; the other end of the third capacitor is grounded, so that data transmission CAN be realized based on the CAN transceiver, namely, the torque measurement value CAN be transmitted. Moreover, the CAN bus data transmission mode realized based on the CAN transceiver has the advantages of stable and reliable data transmission, strong real-time performance, long transmission distance, strong anti-electromagnetic interference capability and low cost. Of course, it is not necessary for any product or method of the invention to achieve all of the above-described advantages at the same time.
The utility model discloses innovation point includes:
1. the CAN-based transceiver CAN realize data transmission, namely, CAN transmit torque measurement values. Moreover, the CAN bus data transmission mode realized based on the CAN transceiver has the advantages of stable and reliable data transmission, strong real-time performance, long transmission distance, strong anti-electromagnetic interference capability and low cost.
2. The voltage value suitable for the data communication device to work can be obtained through conversion of the voltage conversion device, and normal work of the data communication device is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
Fig. 1 is a schematic structural diagram of a data communication device according to the present invention;
fig. 2 is a schematic structural diagram of a voltage conversion device according to the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The embodiment of the utility model discloses data communication device can transmit the moment of torsion measured value. The embodiments of the present invention will be described in detail below.
Fig. 1 is a schematic structural diagram of a data communication device according to an embodiment of the present invention. The data communication apparatus includes:
a first voltage input terminal, which is connected to pin 3 of the controller area network CAN transceiver, i.e. VCC (power supply voltage) pin, a first capacitor C63, and one end of a second capacitor C64; the other ends of the first capacitor C63 and the second capacitor C64 are grounded;
a pin 7 of the CAN transceiver, i.e., a CANH (HIGH-level CAN bus) pin, is connected to one end of the second resistor R57 and one end of the common mode choke coil T2;
a second resistor R57, the other end of which is connected to one end of the third capacitor C65, one end of the third resistor R58, and a pin 5 of the CAN transceiver, i.e., a common-mode stabilization output (SPLIT) pin;
a third resistor R58, the other end of which is connected to pin 6 of the CAN transceiver, i.e., a CANL (LOW-level CAN bus) pin, and the other end of the common mode choke T2; and the other end of the third capacitor C65 is grounded.
The CAN transceiver may be TJA 1040. The TJA1040 has an extremely low current standby mode, and can realize a remote wake-up function through a bus. The CAN bus uses twisted pair wires to transmit signals for transmitting data with a rate of 4Kb/s or less.
The first resistor R56 is 10 kohm; the second resistor R57 is 60.4 ohms and the third resistor R58 is 60.4 ohms. The first resistor R56 is a pull-down resistor, which matches the high and low levels of the control pin of the single chip microcomputer.
The first capacitance C63 is 10 microfarads; the second capacitor C64 is 100 nanofarads; the third capacitance C65 is 1 nanofarad. The capacitors have the functions of filtering, and the first capacitor C63 also has the function of storing energy.
As can be seen from the above, the data communication device provided by the embodiment of the present invention may include: the first voltage input end is connected with a power supply voltage pin of the controller area network CAN transceiver, one end of a first capacitor and one end of a second capacitor; the other ends of the first capacitor and the second capacitor are grounded; the standby mode control input pin of the CAN transceiver is connected with one end of the first resistor; the other end of the first resistor is grounded; a high-level CAN bus pin of the CAN transceiver is connected with one end of a second resistor and one end of a common mode choke coil; the other end of the second resistor is connected with a third capacitor, one end of a third resistor and a common-mode stable output pin of the CAN transceiver; the other end of the third resistor is connected with a low-level CAN bus pin of the CAN transceiver and the other end of the common mode choke coil; the other end of the third capacitor is grounded, so that data transmission CAN be realized based on the CAN transceiver, namely, the torque measurement value CAN be transmitted. Moreover, the CAN bus data transmission mode realized based on the CAN transceiver has the advantages of stable and reliable data transmission, strong real-time performance, long transmission distance, strong anti-electromagnetic interference capability and low cost.
As an implementation manner of the embodiment of the present invention, the data communication device may further include: a voltage conversion device. The voltage output end of the voltage conversion device is connected with the first voltage input end; the voltage of the second voltage input end of the voltage conversion device is 6-32 volts, and the voltage of the voltage output end of the voltage conversion device is 5 volts.
That is, the voltage conversion means and the data communication means may be connected to obtain a voltage value satisfying the operation requirement of the data communication means through the voltage conversion means.
In one implementation, as shown in fig. 2, the voltage conversion apparatus includes:
a second Voltage Input end, connected to the fourth capacitor C33, one end of the fourth resistor R79, and a pin 5 of the switching regulator, i.e., a VIN (Voltage Input) pin;
a fourth capacitor C33, the other end of which is grounded; a fourth resistor R79, the other end of which is connected to pin 4 of the switching regulator, i.e., SHDN _ N (enable and disable input) pin; pin 2 of the switching regulator, namely, a GND (Ground) pin, is grounded;
the anode of the diode D14 is grounded; the other end of the inductor L2 is connected with one end of a fifth resistor R64, a sixth capacitor C54, a seventh capacitor C55, one end of an eighth capacitor C56 and a voltage output end;
a fifth resistor R64, the other end of which is connected to one end of the sixth resistor R65 and to pin 3 of the switching regulator, i.e., FB (feedback) pin; a sixth resistor R65, the other end of which is grounded;
the other ends of the sixth capacitor C54, the seventh capacitor C55 and the eighth capacitor C56 are all grounded.
The switching regulator may be LMR16006 XDDCR. In the voltage conversion device, 6-32V voltage is converted into 5V voltage by a switching regulator. The chip LMR16006XDDCR has a wide working input voltage of 1.4V to 36V, and the output voltage of 2.5V to 15V is adjustable.
The fourth capacitor C33 is 4.7 microfarads; the fifth capacitor C32 is 100 nanofarads; the sixth capacitor C54 is 10 microfarads; the seventh capacitor C55 is 10 microfarads; the eighth capacitor C56 is 100 nanofarads. The function of each capacitor is filtering. The fourth capacitor C33, the sixth capacitor C54 and the seventh capacitor C55 also have the function of energy storage.
The fourth resistor R79 is 100 kilo-ohms; the fifth resistor R64 is 54.9 kilo-ohms; the sixth resistor R65 is 10 kilo-ohms. The function of the fifth resistor R64 and the sixth resistor R65 is to regulate the output voltage.
The inductance L2 is 33 microhenries and functions to store energy. Diode D14 is MBR0520LT1G, which acts to prevent reverse connection.
The voltage value suitable for the data communication device to work can be obtained through conversion of the voltage conversion device, and normal work of the data communication device is guaranteed.
Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A data communication apparatus, comprising:
the first voltage input end is connected with a power supply voltage pin of the controller area network CAN transceiver, one end of a first capacitor (C63) and one end of a second capacitor (C64);
the other end of the first capacitor (C63) and the second capacitor (C64) is grounded;
a standby mode control input pin of the CAN transceiver is connected with one end of a first resistor (R56); the first resistor (R56) and the other end of the first resistor (R56) is grounded;
the high-level CAN bus pin of the CAN transceiver is connected with one end of a second resistor (R57) and one end of a common mode choke coil (T2);
the other end of the second resistor (R57) is connected with one end of a third capacitor (C65), one end of a third resistor (R58) and a common mode stable output pin of the CAN transceiver;
the other end of the third resistor (R58) is connected with a low-level CAN bus pin of the CAN transceiver and the other end of the common mode choke coil (T2);
and the other end of the third capacitor (C65) is grounded.
2. The data communication apparatus according to claim 1, further comprising: a voltage conversion device;
the voltage output end of the voltage conversion device is connected with the first voltage input end;
and the voltage of a second voltage input end of the voltage conversion device is 6-32 volts, and the voltage of a voltage output end of the voltage conversion device is 5 volts.
3. The data communication device of claim 2, wherein the voltage conversion device comprises:
the second voltage input end is connected with a fourth capacitor (C33), one end of a fourth resistor (R79) and a voltage input pin of the switching regulator;
the other end of the fourth capacitor (C33) is grounded; the other end of the fourth resistor (R79) is connected with an enabling input pin and a disabling input pin of the switching regulator; the ground pin of the switching regulator is grounded;
the bootstrap voltage pin of the switching regulator is connected with one end of a fifth capacitor (C32); the other end of the fifth capacitor (C32) is connected with a switch node pin of the switching regulator, one end of an inductor (L2) and the negative electrode of a diode (D14);
the anode of the diode (D14) is grounded; the other end of the inductor (L2) is connected with one end of a fifth resistor (R64), a sixth capacitor (C54), a seventh capacitor (C55), one end of an eighth capacitor (C56) and the voltage output end;
the other end of the fifth resistor (R64) is connected with one end of a sixth resistor (R65) and a feedback pin of the switching regulator; the other end of the sixth resistor (R65) is grounded;
and the other ends of the sixth capacitor (C54), the seventh capacitor (C55) and the eighth capacitor (C56) are all grounded.
4. The data communication apparatus according to claim 3,
the fourth capacitance (C33) is 4.7 microfarads; the fifth capacitance (C32) is 100 nanofarads; the sixth capacitance (C54) is 10 microfarads; the seventh capacitance (C55) is 10 microfarads; the eighth capacitor (C56) is 100 nanofarads.
5. The data communication apparatus according to claim 3,
the fourth resistance (R79) is 100 kilo-ohms; the fifth resistance (R64) is 54.9 kilo-ohms; the sixth resistance (R65) is 10 kilo-ohms.
6. The data communication apparatus according to claim 3,
the inductance (L2) is 33 microHenry.
7. The data communication apparatus according to claim 3,
the diode (D14) is MBR0520LT 1G.
8. The data communication apparatus according to any one of claims 1 to 7,
the first resistance (R56) is 10 kilo-ohms; the second resistance (R57) is 60.4 ohms and the third resistance (R58) is 60.4 ohms.
9. The data communication apparatus according to any one of claims 1 to 7,
the first capacitance (C63) is 10 microfarads; the second capacitance (C64) is 100 nanofarads; the third capacitance (C65) is 1 nanofarad.
10. The data communication apparatus according to any one of claims 1 to 7,
the CAN transceiver is TJA 1040.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922330244.7U CN210667163U (en) | 2019-12-23 | 2019-12-23 | Data communication device |
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| CN201922330244.7U CN210667163U (en) | 2019-12-23 | 2019-12-23 | Data communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910627A (en) * | 2019-12-23 | 2020-03-24 | 北京百联长通科技有限公司 | Data communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910627A (en) * | 2019-12-23 | 2020-03-24 | 北京百联长通科技有限公司 | Data communication device |
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