CN213973887U - Intelligent terminal of Internet of vehicles - Google Patents
Intelligent terminal of Internet of vehicles Download PDFInfo
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- CN213973887U CN213973887U CN202022573269.2U CN202022573269U CN213973887U CN 213973887 U CN213973887 U CN 213973887U CN 202022573269 U CN202022573269 U CN 202022573269U CN 213973887 U CN213973887 U CN 213973887U
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Abstract
The utility model provides a car networking intelligent terminal, include: the system comprises a terminal function module, a power supply switching module and a super capacitor module; one end of the super capacitor module is respectively connected with the power output end of the power switching module and the power input end of the terminal function module; the other end of the super capacitor module is grounded; and when the power supply switching module executes power supply switching, the super capacitor module supplies power to the terminal function module and the power supply switching module. The utility model provides a car networking intelligent terminal, in the twinkling of an eye at power supply switching, under the condition that the circuit break appears between power supply and the power switching module, super capacitor module discharges in the twinkling of an eye and supplies power for terminal function module and power switching module, ensures that terminal function module and power switching module normally work, accomplishes the power switching.
Description
Technical Field
The utility model relates to a vehicle control technical field especially relates to a car networking intelligent terminal.
Background
Along with the continuous development of the car networking technology, more and more car networking intelligent terminals are installed on the car for realize intelligent driving, improve vehicle driving safety nature. Generally, a power switching device is provided in an automobile to improve power supply reliability.
Current car networking intelligent terminal when external power source voltage reduction appears, control power supply switching module switches power supply to stand-by battery, but when external power source appears breaking, power supply switching device itself also can appear the outage, can't continue work, can not normally switch power supply to stand-by power supply, causes car networking intelligent terminal to appear outage shutdown phenomenon.
SUMMERY OF THE UTILITY MODEL
The utility model provides a car networking intelligent terminal for when appearing opening circuit among the solution among the prior art car networking intelligent terminal and between the external power supply, can not normally switch power, cause car networking intelligent terminal to appear the defect that the outage shut down.
The utility model provides a car networking intelligent terminal, include: the system comprises a terminal function module, a power supply switching module and a super capacitor module;
one end of the super capacitor module is respectively connected with the power output end of the power switching module and the power input end of the terminal function module; the other end of the super capacitor module is grounded; and when the power supply switching module executes power supply switching, the super capacitor module supplies power to the terminal function module and the power supply switching module.
According to the utility model provides a pair of intelligent terminal of car networking power switching module execution power switching passes through when taking place the outage super capacitor module does terminal function module with the power switching module power supply.
According to the utility model provides a pair of intelligent terminal of car networking pass through when voltage variation takes place in the power switching module execution power switching the super capacitor module does terminal function module with the power switching module power supply.
According to the utility model provides a pair of intelligent terminal of car networking, the power input end of power switching module links to each other with a plurality of power.
According to the utility model provides a pair of car networking intelligent terminal, a plurality of power include on-vehicle storage battery and stand-by battery.
According to the utility model provides a pair of intelligent terminal of car networking still includes voltage detection module, voltage detection module's power input end with the power output end of power switching module is connected.
According to the utility model provides a pair of intelligent terminal of car networking, voltage detection module is used for detecting the supply voltage of on-vehicle storage battery, and will the supply voltage of on-vehicle storage battery send to terminal function module.
According to the utility model provides a pair of intelligent terminal of car networking, terminal function module is used for detecting voltage detection module sends when the supply voltage more than or equal to of on-vehicle storage battery predetermines the magnitude of voltage, control the power switching module selects on-vehicle storage battery power supply.
According to the utility model provides a pair of intelligent terminal of car networking, terminal function module is used for detecting voltage detection module sends when the supply voltage of on-vehicle storage battery is less than and predetermines the magnitude of voltage, control power switching module selects the stand-by battery power supply.
According to the utility model provides a pair of intelligent terminal of car networking, predetermine the magnitude of voltage and do minimum among the rated operating voltage of each module among the intelligent terminal of car networking.
The utility model provides a car networking intelligent terminal increases the super capacitor module in the circuit, be connected the one end of super capacitor module with the power output end of power switching module and terminal function module's power input end respectively, other end ground connection, in the twinkling of an eye at power switching, appear under the condition of open circuit between power supply and the power switching module, the super capacitor module discharges in the twinkling of an eye and supplies power for terminal function module and power switching module, guarantee terminal function module and power switching module normal work, accomplish the power switching. Simultaneously, the super capacitor module can promote direct current voltage virtual value and the remaining alternating current component of filtering in the power, ensures car networking intelligent terminal's voltage safety.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent terminal of a vehicle networking provided by the present invention;
fig. 2 is a schematic structural diagram of another intelligent terminal for internet of vehicles provided by the present invention;
fig. 3 is the utility model provides a car networking intelligent terminal's work schematic diagram.
Reference numerals:
110: a terminal function module; 120: a power switching module; 130: a super capacitor module;
140: a voltage detection module; 150: a vehicle-mounted storage battery; 160: and a backup battery.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of the intelligent terminal for vehicle networking, as shown in fig. 1, the terminal includes a terminal function module 110, a power switching module 120 and a super capacitor module 130;
one end of the super capacitor module 130 is connected to the power output end of the power switching module 120 and the power input end of the terminal function module 110, respectively; the other end of the super capacitor module 130 is grounded; when the power switching module 120 performs power switching, the super capacitor module 130 supplies power to the terminal function module 110 and the power switching module 120.
Specifically, the terminal function module 110 is installed on an automobile and used for realizing functions such as parameter monitoring, road early warning, navigation positioning, audio-video entertainment and the like. The power input end of the power switching module 120 is externally connected to a power supply and a standby power supply, and the power output end is connected to the power input end of the terminal function module 110. The power switching module 120 switches power between a power supply and a standby power supply to provide a stable operating power for the terminal function module 110.
When the voltage of the power supply is normal, the terminal function module 110 controls the power switching module 120 to select the power supply to supply power. Because one end of the super capacitor module 130 is connected to the power output end of the power switching module 120, at this time, the power supply charges the super capacitor module 130, and meanwhile, the super capacitor module 130 increases the effective value of the dc voltage in the power supply and filters out the residual ac component.
When the voltage of the power supply is abnormal, the terminal function module 110 controls the power switching module 120 to switch the power supply to the standby power, and the standby power supplies power. Power switching module 120 all is in the off-state with power supply and stand-by power supply in the switching twinkling of an eye, terminal function module 110 and power switching module 120 will lose the electricity in the twinkling of an eye, because the one end of super capacitor module 130 is connected with power output terminal and the power input end of terminal function module 110 of power switching module 120 respectively, at this moment, super capacitor module 130 discharges in the twinkling of an eye, for terminal function module 110 and power switching module 120 power supply, each module normal operating in maintaining the car networking intelligent terminal, make terminal function module 110 continue to control power switching module 120 and accomplish the power switching, power switching module 120 obtains working power supply from the power output of self, the phenomenon of shutting down of under-voltage can not appear in whole car networking intelligent terminal. After switching to the backup power supply, the backup power supply charges the super capacitor module 130 for the next switching.
In the power switching process, the other end of the super capacitor module 130 is reliably grounded, so that the potential of the ground terminal is 0, and a voltage fluctuation signal generated in the power switching process flows into the ground terminal, thereby ensuring the voltage safety of the terminal function module 110 and the power switching module 120.
The utility model provides a car networking intelligent terminal increases the super capacitor module in the circuit, be connected the one end of super capacitor module with the power output end of power switching module and terminal function module's power input end respectively, other end ground connection, in the twinkling of an eye at power switching, appear under the condition of open circuit between power supply and the power switching module, the super capacitor module discharges in the twinkling of an eye and supplies power for terminal function module and power switching module, guarantee terminal function module and power switching module normal work, accomplish the power switching. Simultaneously, the super capacitor module can promote direct current voltage virtual value and the remaining alternating current component of filtering in the power, ensures car networking intelligent terminal's voltage safety.
Based on any of the above embodiments, when the power switching module 120 performs power switching and is powered off, the super capacitor module 130 supplies power to the terminal function module 110 and the power switching module 120.
Based on any of the above embodiments, when the power switching module 120 performs power switching and voltage change occurs, the super capacitor module 130 supplies power to the terminal function module 110 and the power switching module 120.
Based on any of the above embodiments, the power input terminal of the power switching module 120 is connected to a plurality of power sources.
Specifically, for a fuel powered vehicle, the power supply of the vehicle networking intelligent terminal can come from a vehicle-mounted battery, a generator and the like. For electric vehicles, the power supply of the intelligent terminal of the Internet of vehicles can be from a power battery, a vehicle-mounted charger, a vehicle-mounted battery and the like.
Can link to each other a plurality of powers and power supply switching module 120's power input end, when power disconnection wherein all the way, power switching module 120 still can switch to other powers, has improved car networking intelligent terminal's power supply security.
Based on any one of the above embodiments, the plurality of power sources includes an on-board battery and a backup battery.
In particular, a vehicle-mounted battery, i.e. a storage battery, works on the principle of converting chemical energy into electrical energy. The vehicle-mounted storage battery can be a lead-acid storage battery, namely a storage battery mainly made of lead and lead oxide, and the electrolyte is sulfuric acid solution.
The intelligent terminal of the Internet of vehicles can also be provided with a standby battery. For example, the automobile data recorder records and stores the running speed, time, mileage and other state information related to the running of the vehicle, provides important data and information for analyzing road traffic safety accidents, and has very high requirement on the power supply reliability of a power supply. Generally, automobile event recorders are equipped with a backup battery.
The vehicle-mounted storage battery and the standby battery are respectively connected into the power supply switching module 120, so that the power supply safety of the intelligent terminal of the Internet of vehicles is improved.
Based on above-mentioned embodiment, fig. 2 is the utility model provides a another car networking intelligent terminal's schematic structure, as shown in fig. 2, the device still includes voltage detection module 140, and voltage detection module 140's power input end is connected with power switching module 120's power output end.
In particular, the voltage detection module 140 may be used to detect voltages of the power supply, the backup power supply, and other important modules. The power input end of the voltage detection module 140 is connected to the power output end of the power switching module 120, and when the power switching module 120 is in a disconnected state with both the power supply and the standby power supply at the switching moment, the super capacitor module 130 can discharge instantaneously to supply power to the voltage detection module 140 so that the voltage detection module 140 can work normally.
The utility model provides a car networking intelligent terminal is connected the power input end of voltage detection module and the one end that super capacitor module is connected the power output end of power switching module, has realized in the twinkling of an eye at the power switching, and the maintenance voltage detection module normally works.
Based on any of the above embodiments, the voltage detection module 140 is configured to detect a supply voltage of the vehicle-mounted battery, and send the supply voltage of the vehicle-mounted battery to the terminal function module 110.
Specifically, the vehicle-mounted storage battery is used as the most basic power supply in a vehicle-mounted power supply system and can be used as a power supply of the intelligent terminal of the internet of vehicles. The working principle of the vehicle-mounted battery is that when an automobile engine is started, idles or is overloaded, the vehicle-mounted battery supplies power to an intelligent terminal of the Internet of vehicles on the vehicle; when the automobile engine runs stably and the end voltage is higher than the electromotive force of the vehicle-mounted storage battery, the electric energy output by the engine is converted into chemical energy to finish charging. Therefore, the voltage of the vehicle-mounted battery changes frequently. The voltage detection module 140 can be used for detecting the power supply voltage of the vehicle-mounted storage battery and sending the power supply voltage of the vehicle-mounted storage battery to the terminal function module 110, so that the terminal function module 110 can control the power supply switching module 120 to switch the power supply according to the voltage change of the vehicle-mounted storage battery.
Based on any of the above embodiments, the terminal function module 110 is configured to control the power switching module 120 to select the on-vehicle battery to supply power when detecting that the power supply voltage of the on-vehicle battery sent by the voltage detection module 140 is greater than or equal to a preset voltage value.
Specifically, the preset voltage value is used for measuring the power supply capacity of the vehicle-mounted storage battery. For example, the preset voltage value can be set to 11V for measuring the power supply capacity of the vehicle-mounted battery.
When the power supply voltage of the vehicle-mounted storage battery sent by the voltage detection module 140 is detected to be greater than or equal to the preset voltage value, and the power supply is the vehicle-mounted storage battery, the fact that the power supply voltage of the vehicle-mounted storage battery can ensure that each module in the intelligent terminal of the internet of vehicles can work normally is shown. At this time, the terminal function module 110 does not perform power supply switching control.
When the power supply voltage of the vehicle-mounted storage battery sent by the voltage detection module 140 is detected to be greater than or equal to the preset voltage value, and the power supply is a standby battery, the fact that the power supply voltage of the vehicle-mounted storage battery can ensure that each module in the intelligent terminal of the internet of vehicles can work normally is shown. At this time, the terminal function module 110 controls the power switching module 120 to select the vehicle-mounted battery to supply power, so as to reduce the consumption of the backup battery and reduce the economic cost of manufacturing and using the vehicle.
Based on any of the above embodiments, the terminal function module 110 is configured to control the power switching module 120 to select the backup battery to supply power when detecting that the power supply voltage of the vehicle-mounted battery sent by the voltage detection module 140 is smaller than a preset voltage value.
Specifically, when detecting that the supply voltage of the vehicle-mounted battery sent by the voltage detection module 140 is smaller than the preset voltage value, it indicates that the supply voltage of the vehicle-mounted battery cannot ensure that each module in the intelligent terminal of the internet of vehicles works normally. At this time, the terminal function module 110 controls the power switching module 120 to switch power, disconnect the vehicle-mounted battery, and select the backup battery to supply power.
Based on any one of the above embodiments, the preset voltage value is the minimum value of the rated working voltages of the modules in the intelligent terminal for the internet of vehicles.
Specifically, the preset voltage value can be selected according to the rated working voltage of each module in the intelligent terminal of the internet of vehicles. For example, the minimum value among the rated operating voltage of the terminal function module 110, the rated operating voltage of the power switching module 120, and the rated operating voltage of the voltage detection module 140 may be selected as the preset voltage value.
Based on any of the above embodiments, fig. 3 is the utility model provides a car networking intelligent terminal's working schematic diagram, as shown in fig. 3, this terminal includes terminal function module 110, power switch module 120, super capacitor module 130 and voltage detection module 140. The external power supply of the terminal is a vehicle-mounted storage battery 150 and a standby battery 160. In this case, the solid line represents the power supply connection relationship, the broken line represents the signal connection relationship, and the arrow of the broken line represents the signal transmission direction.
The terminal function module 110, the power switching module 120, the super capacitor module 130 and the voltage detection module 140 may be integrated on a circuit board, or may be designed as separate or combined unit modules by adopting a split design.
One end of the super capacitor module 130 is connected to the power output terminal of the power switching module 120 and the power input terminal of the voltage detection module 140, respectively, and the other end is grounded.
The power input end of the power switching module 120 is connected to the vehicle-mounted battery 150 and the backup battery 160 respectively. The power switching module 120 obtains operating power from its power output.
The voltage detection module 140 is configured to collect a power supply voltage signal of the vehicle-mounted battery 150 and send the power supply voltage signal to the terminal function module 110.
The terminal function module 110 is configured to determine whether to perform power switching after comparing the power supply voltage signal sent by the voltage detection module 140 with a preset voltage value:
when the power supply voltage signal of the vehicle-mounted storage battery 150 is lower than the preset voltage value, a first switching instruction is sent to the power supply switching module 120, and the vehicle-mounted storage battery 150 is switched to the standby battery 160 to supply power to each module of the intelligent terminal of the internet of vehicles;
when the power supply voltage signal of the vehicle-mounted storage battery 150 is greater than or equal to the preset voltage value, if the power supply of the intelligent terminal of the internet of vehicles is the standby battery 160, a second switching instruction is sent to the power supply switching module 120, and the standby battery 160 is switched to the vehicle-mounted storage battery 150 by the power supply switching module to supply power to each module of the intelligent terminal of the internet of vehicles; if the power supply of the intelligent terminal of the Internet of vehicles is the vehicle-mounted storage battery 150, no control instruction is sent.
At the moment that power switching module 120 switches power, the power switching module, vehicle-mounted battery 150 and backup battery 160 are both in a disconnected state, at this moment, super capacitor module 130 discharges instantaneously to supply power to terminal function module 110, power switching module 120 and voltage detection module 140, and each module in the intelligent terminal of the internet of vehicles is maintained to operate normally, so that terminal function module 110 continues to control power switching module 120 to complete power switching smoothly, and the phenomenon of shutdown under low voltage cannot occur in the intelligent terminal of the internet of vehicles. After the switching, the switched power supply supplies power to the super capacitor module 130 for the next switching.
When power switching does not occur in the intelligent terminal of the internet of vehicles, the super capacitor module 130 is used for improving the effective value of the direct-current voltage in the power supply and filtering out residual alternating-current components.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
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 present invention in its corresponding aspects.
Claims (10)
1. An intelligent terminal of the Internet of vehicles is characterized by comprising a terminal function module, a power supply switching module and a super capacitor module;
one end of the super capacitor module is respectively connected with the power output end of the power switching module and the power input end of the terminal function module; the other end of the super capacitor module is grounded;
and when the power supply switching module executes power supply switching, the super capacitor module supplies power to the terminal function module and the power supply switching module.
2. The intelligent terminal of claim 1, wherein the terminal function module and the power switching module are powered by the super capacitor module when power is cut off while the power switching module performs power switching.
3. The intelligent terminal of claim 1, wherein the super capacitor module is configured to supply power to the terminal function module and the power switching module when the power switching module performs power switching and voltage change occurs.
4. The intelligent terminal of claim 1, wherein the power input of the power switching module is connected to a plurality of power sources.
5. The intelligent terminal of claim 4, wherein the plurality of power sources comprise vehicle-mounted batteries and backup batteries.
6. The intelligent terminal of claim 5, further comprising a voltage detection module, wherein a power input terminal of the voltage detection module is connected to a power output terminal of the power switching module.
7. The intelligent terminal of claim 6, wherein the voltage detection module is configured to detect a supply voltage of the vehicle-mounted battery and send the supply voltage of the vehicle-mounted battery to the terminal function module.
8. The intelligent terminal of claim 7, wherein the terminal function module is configured to control the power switching module to select the on-vehicle battery to supply power when detecting that the supply voltage of the on-vehicle battery sent by the voltage detection module is greater than or equal to a preset voltage value.
9. The intelligent terminal of claim 7, wherein the terminal function module is configured to control the power switching module to select the backup battery to supply power when detecting that the supply voltage of the vehicle-mounted battery sent by the voltage detection module is smaller than a preset voltage value.
10. The intelligent terminal of claim 8 or 9, wherein the preset voltage value is a minimum value of rated operating voltages of the modules in the intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573269.2U CN213973887U (en) | 2020-11-09 | 2020-11-09 | Intelligent terminal of Internet of vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573269.2U CN213973887U (en) | 2020-11-09 | 2020-11-09 | Intelligent terminal of Internet of vehicles |
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| CN213973887U true CN213973887U (en) | 2021-08-17 |
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| CN202022573269.2U Active CN213973887U (en) | 2020-11-09 | 2020-11-09 | Intelligent terminal of Internet of vehicles |
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