CN117793668A - Real-time monitoring data transmission method for freight vehicle - Google Patents
Real-time monitoring data transmission method for freight vehicle Download PDFInfo
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- CN117793668A CN117793668A CN202410202003.7A CN202410202003A CN117793668A CN 117793668 A CN117793668 A CN 117793668A CN 202410202003 A CN202410202003 A CN 202410202003A CN 117793668 A CN117793668 A CN 117793668A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 10
- 230000007958 sleep Effects 0.000 claims abstract description 5
- 239000000872 buffer Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
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Abstract
The invention discloses a method for transmitting real-time monitoring data of a freight vehicle, which belongs to the technical field of information monitoring and transmission, and comprises the steps of timely transmitting temperature data of truck parts, which are detected to be abnormal by a node, to a host machine through a host machine, a node for monitoring temperatures of multiple parts such as a truck hub, a gearbox, a front axle, a rear axle, an engine and the like, and a data transmission structure between the nodes, and timely transmitting the temperature data to the host machine to remind a driver in the cab to process the temperature data, uploading the temperature data to a remote monitoring platform for remote management and monitoring, so as to control and reduce the safety risks of tire burst, fire, non-working stall of the gearbox engine and the like when the truck is driven; the node transmission mechanism is used for controlling the node to work regularly and sleep, so as to ensure long-time cruising and judging that the node is online; and the communication detection mechanism is used for judging the communication condition between the host and the node, so that the relay is controlled to forward data, and the timeliness of data transmission is ensured.
Description
Technical Field
The invention discloses an information monitoring and transmitting technology, in particular to a method for transmitting real-time monitoring data of a freight vehicle.
Background
In the trucking, the proportion that freight car accident accounts for in malignant traffic accident is very high, and current trucking mainly relies on driver's subjective driving experience to judge driving safety, but when parts such as wheel hub, gearbox, front and back sedan-chair and engine trouble, be difficult to judge wheel hub or brake abnormal condition by means of driver's subjective driving experience, and these parts trouble can cause hidden danger such as tire burst, fire, gearbox and engine inoperative stall, in continuous long-time driving, the driver is easily influenced by factors such as fatigue driving, leads to judging inaccurately to cause freight car driving's security risk, increases the hidden danger that causes traffic accident.
Disclosure of Invention
The invention aims to solve the problems and provide a method for transmitting real-time monitoring data of a freight vehicle.
In order to achieve the above purpose, the present invention provides the following technical solutions: the real-time monitoring data transmission method for the freight vehicle comprises a host computer installed in a truck cab, a node for monitoring the temperature of truck components, a relay and a remote monitoring platform, wherein the data transmission flow among the host computer, the relay and the node is as follows:
s1, starting a truck, enabling a host and a relay to start standby and always to be in a state of waiting for node data, and enabling a node to start to collect and detect the temperature of components of the truck;
s2, the node starts to monitor the temperature of the truck part at regular time, when the temperature data of the truck part collected and detected by the node is normal, the node enters into a period sleep, waits for restarting in the next period to collect and detect again,
or when the temperature data of the truck parts collected and detected by the nodes are abnormal, transmitting the node data to the relay and the host;
and S3, displaying the temperature data of the truck parts after the host monitors the node data, and uploading the temperature data of the truck parts to the remote monitoring platform through a 4G network.
By adopting the technical scheme, the temperature sensor of the node is used for monitoring the temperature data of the truck parts at regular time, and the abnormal temperature data of the truck parts is directly sent or forwarded to the host in the truck cab through the relay for display and alarm, and the host is uploaded to the remote monitoring platform through the 4G network for early warning and warning.
Preferably, the node queries the RTC time at regular time, and the node transmission includes the following two mechanisms:
m1, when the node inquires that the RTC time passes 5S, the node starts to collect and detect the temperature of the truck part, otherwise, the node enters a standby dormant state;
and M2, when the node inquires that the RTC time passes through 285S, the node actively uploads the heartbeat packet data and the detected temperature data of the truck component in a normal state to a host and a relay.
By adopting the technical scheme, the RTC time is queried at regular time to control the node to restart at regular time and to stand by for dormancy, so that the node can have sufficient endurance time to monitor, and whether the node is on line or not is judged by heartbeat packet data.
Preferably, in M1 and M2, after the node data is transmitted to the relay and the host, the node enters a waiting state waiting for the host to reply and does not enter a dormant state, and the node and the relay have a communication detection mechanism:
k1, if the node receives the host reply in 15S, entering a dormant state, and repeating the transmission node data;
and K2, if the waiting state of the node waiting for the host to reply exceeds 15S, entering a dormant state, and relaying and forwarding the transmission node data to the host.
By adopting the technical scheme, whether the communication between the host and the node is interrupted or not is judged through the communication detection mechanism, so that the monitoring data can be timely responded and processed through relay forwarding after the communication between the host and the node is interrupted.
Preferably, the relay is provided with a RAM and a FIFO, temporarily buffers the node data by the RAM, and processes the received node data by the relay as follows:
d1, deleting node data cached in the RAM if the K1 condition of the communication detection mechanism is met;
and D2, if the K2 condition of the communication detection mechanism is met, transmitting the node data cached in the RAM to the FIFO, forwarding the node data to the host through the FIFO, and deleting the node data cached in the RAM and the FIFO.
By adopting the technical scheme, the node data with corresponding buffer is ensured to be forwarded through the processing mechanism of the relay node data, the temporary buffer node data is deleted in time, the redundant data buffer of the relay is reduced, and the relay forwarding efficiency is improved.
Preferably, the structure of the host comprises a host shell main body, a screen and a motherboard, wherein the motherboard comprises a SIM card seat, an audio interface, a TYPE-C interface, a TF card seat, a 4G module and a power supply.
By adopting the technical scheme, the audio interface can be used for externally connecting the alarm device and the voice message sent by the remote monitoring platform.
Preferably, the structure of the node comprises a node antenna, a battery, a node board card and a node shell main body, wherein the node board card comprises 433 a communication module, an antenna interface, a power interface, a sensor interface and a micro control unit.
By adopting the technical scheme, the micro control unit is used for controlling the nodes to work according to the set program.
Preferably, the relay structure includes a relay antenna, a relay board card, and a relay case body.
By adopting the technical scheme, the sensor interface of the relay board card except for the temperature sensor is consistent with the structure of the node board card, so that the same data transmission work as the node can be ensured.
Compared with the prior art, the invention has the beneficial effects that:
the temperature data of truck parts with abnormal detected nodes are timely transmitted to a host machine through a data transmission structure among the host machine, the nodes and the relays to remind a driver in a cab to process, and the data are uploaded to a remote monitoring platform for remote management and monitoring, and the remote monitoring platform can pre-judge and monitor the temperatures of a hub, a gearbox, front and rear axles and an engine and remind the driver to control driving through an alarm, so that the safety risks of conditions such as tire burst, fire, non-working stall of the gearbox engine and the like when the truck is driven are controlled and reduced; the node transmission mechanism is used for controlling the node to work regularly and sleep, so as to ensure long-time cruising and judging that the node is online; and the communication detection mechanism is used for judging the communication condition between the host and the node, so that the relay is controlled to forward data, and the timeliness of data transmission is ensured.
Drawings
FIG. 1 is a flow chart of data transmission between a host, a relay, and a node;
FIG. 2 is a topology of a transmission network between hosts, relays, and nodes;
FIG. 3 is a pairing flow diagram between a host and a relay;
FIG. 4 is a flow chart of pairing between a host and a node;
FIG. 5 is a schematic diagram of a host;
FIG. 6 is a schematic diagram of a node structure;
fig. 7 is a schematic diagram of the structure of a relay;
FIG. 8 is a circuit layout diagram I of a node board card;
FIG. 9 is a second circuit layout of a node board;
fig. 10 is a circuit layout of a motherboard.
Reference numerals: 1. a main body of the main body housing; 2. a screen; 3. a motherboard card; 4. a node antenna; 5. a battery; 6. a node board card; 7. a node housing body; 8. a relay antenna; 9. a relay board card; 10. a relay case main body.
Detailed Description
In the following description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A real-time monitoring data transmission method for freight vehicles comprises a host computer installed in a truck cab, a node for monitoring the temperature of truck components, a relay and a remote monitoring platform, wherein the node is installed at the position of the truck components (hub, gearbox, front and rear axles and engine), the node is installed in bilateral symmetry, the relay is installed in the center of the truck, the transmission network topology diagram among the host computer, the relay and the node is shown in fig. 2, the host computer and the node can communicate bidirectionally, and the host computer and the node can communicate with each other in a forwarding mode through the relay.
As shown in fig. 5, the structure of the host includes a host housing body 1, a screen 2 and a motherboard 3, as shown in fig. 10, the motherboard 3 includes a SIM card holder, an audio interface, a TYPE-C interface, a TF card holder, a 4G module and a power supply, as shown in fig. 6, the structure of the node includes a node antenna 4, a battery 5, a node board 6 and a node housing body 7, as shown in fig. 8 and 9, the node board 6 includes 433 communication modules, an antenna interface, a power supply interface, a sensor interface and a micro control unit, as shown in fig. 7, the structure of the relay includes a relay antenna 8, a relay board 9 and a relay housing body 10, wherein the structure of the relay board 9 is identical to the node board 6 (only lacks a sensor interface). Wireless 433 communication protocol is adopted among the host, the relay and the node, and the pairing flow among the host, the relay and the node is shown in fig. 3 and 4.
Embodiment one: as shown in fig. 1, the data transmission flow between the host, the relay and the node is as follows:
s1, starting a truck, enabling a host and a relay to start standby and always to be in a state of waiting for node data, and enabling a node to start to collect and detect the temperature of components of the truck;
s2, the node starts to monitor the temperature of the truck part at regular time, when the temperature data of the truck part collected and detected by the node is normal, the node enters into a period sleep, waits for restarting in the next period to collect and detect again,
or when the temperature data of the truck parts collected and detected by the nodes are abnormal, transmitting the node data to the relay and the host;
and S3, displaying the temperature data of the truck parts after the host monitors the node data, and uploading the temperature data of the truck parts to the remote monitoring platform through a 4G network.
The data transmission is initiated by the node always, the host and the relay are always in a state of waiting for the node to initiate the data transmission, when the temperature data of the truck components collected and detected by the node are abnormal, such as the temperature data of the hub is abnormal, the node can send the temperature data of the hub to the host, in general, the temperature of the hub is consistent at the left side and the right side, the temperature difference range is within 0-2 ℃, and the abnormal condition and the judging mechanism of the temperature data are as follows:
when the nodes arranged on the two sides detect that the temperature difference value of the hub temperatures on the left side and the right side exceeds a set range, or when the hub temperature exceeds or is lower than a set threshold value.
The host computer is uploaded to the remote monitoring platform through the 4G network, the remote monitoring platform analyzes and researches and judges through AI artificial intelligence by means of big data, if judging that the truck has potential safety hazards, the remote monitoring platform can control the host computer in driving through the 4G network to remind a driver to reduce the speed of a vehicle by means of sound broadcasting and display alarm, the remote monitoring platform and satellite navigation assist the driver to find the nearest parking area to park and rest, driving risks are avoided, the temperature data of the truck hub are continuously monitored, and the host computer releases the alarm until the temperature data difference value of the truck hub reaches balance or is in a normal range.
Embodiment two: as shown in fig. 1, the node timing queries for RTC time, and the node transmission includes two mechanisms:
m1, when the node inquires that the RTC time passes 5S, the node starts to collect and detect the temperature of the truck part, otherwise, the node enters a standby dormant state;
m2, when the node inquires that the RTC time passes through 285S, the node actively uploads heartbeat packet data and acquires detected temperature data of the truck component to the host and the relay in a normal state;
in M2, 285S heartbeat packet data is sent to the host computer, and is used for the host computer to judge whether the node is in normal operation on line and can upload the temperature data of the truck component collected and detected in a normal state to the host computer and the relay, and in addition, the heartbeat packet data triggering interval is just set to be an integral multiple of the cycle time 5S of the temperature data of the truck component collected and detected by the node in M1.
In M1 and M2, after the node data is transmitted to the relay and the host, the node enters a waiting state waiting for the host to reply and does not enter a dormant state, and the node and the relay have a communication detection mechanism:
k1, if the node receives the host reply in 15S, entering a dormant state, and repeating the transmission node data;
and K2, if the waiting state of the node waiting for the host to reply exceeds 15S, entering a dormant state, and relaying and forwarding the transmission node data to the host.
When the host receives the node data or relay data, the host needs to reply the message, the node needs to wait for replying after sending the message to enter a dormant state, if the relay monitors the message sent by the node, but does not monitor the reply of the host in 15S, the situation that the communication between the host and the node is interrupted is judged, the host does not receive the message sent by the node, and the relay forwards the node data to the host.
Embodiment III: the relay is provided with a RAM and a FIFO, temporarily caches node data through the RAM, and processes the received node data by the relay as follows:
d1, deleting node data cached in the RAM if the K1 condition of the communication detection mechanism is met;
and D2, if the K2 condition of the communication detection mechanism is met, transmitting the node data cached in the RAM to the FIFO, forwarding the node data to the host through the FIFO, and deleting the node data cached in the RAM and the FIFO.
The relay temporarily caches the node data received each time through the RAM, if the relay judges that the communication between the host and the node is interrupted, the node data temporarily cached in the RAM is transferred to the FIFO and then is forwarded to the host, and the node data temporarily cached in the RAM and the FIFO are deleted after the forwarding is completed; if the communication between the host and the node is normal, the relay directly deletes the node data temporarily cached in the RAM.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The real-time monitoring data transmission method for the freight vehicle is characterized by comprising a host computer arranged in a truck cab, a node for monitoring the temperature of truck components, a relay and a remote monitoring platform, wherein the data transmission flow among the host computer, the relay and the node is as follows:
s1, starting a truck, enabling a host and a relay to start standby and always to be in a state of waiting for node data, and enabling a node to start to collect and detect the temperature of components of the truck;
s2, the node starts to monitor the temperature of the truck part at regular time, when the temperature data of the truck part collected and detected by the node is normal, the node enters into a period sleep, waits for restarting in the next period to collect and detect again,
or when the temperature data of the truck parts collected and detected by the nodes are abnormal, transmitting the node data to the relay and the host;
and S3, displaying the temperature data of the truck parts after the host monitors the node data, and uploading the temperature data of the truck parts to the remote monitoring platform through a 4G network.
2. The method for transmitting real-time monitoring data of a freight vehicle according to claim 1, wherein the node queries the RTC time at regular time, and the node transmission includes the following two mechanisms:
m1, when the node inquires that the RTC time passes 5S, the node starts to collect and detect the temperature of the truck part, otherwise, the node enters a standby dormant state;
and M2, when the node inquires that the RTC time passes through 285S, the node actively uploads the heartbeat packet data and the detected temperature data of the truck component in a normal state to a host and a relay.
3. The method for transmitting real-time monitoring data of a freight vehicle according to claim 2, wherein in M1 and M2, after the node data is transmitted to the relay and the host, the node enters a waiting state waiting for the host to reply and does not enter a dormant state, and the node and the relay have a communication detection mechanism:
k1, if the node receives the host reply in 15S, entering a dormant state, and repeating the transmission node data;
and K2, if the waiting state of the node waiting for the host to reply exceeds 15S, entering a dormant state, and relaying and forwarding the transmission node data to the host.
4. A method for transmitting real-time monitoring data of a freight vehicle according to claim 3, wherein the relay is provided with a RAM and a FIFO, the relay temporarily buffers the node data via the RAM, and the processing mechanism of the received node data by the relay is as follows:
d1, deleting node data cached in the RAM if the K1 condition of the communication detection mechanism is met;
and D2, if the K2 condition of the communication detection mechanism is met, transmitting the node data cached in the RAM to the FIFO, forwarding the node data to the host through the FIFO, and deleting the node data cached in the RAM and the FIFO.
5. The method for transmitting real-time monitoring data of a freight vehicle according to claim 1, wherein the host comprises a host housing main body (1), a screen (2) and a motherboard (3), and the motherboard (3) comprises a SIM card holder, an audio interface, a TYPE-C interface, a TF card holder, a 4G module and a power supply.
6. The method for transmitting the real-time monitoring data of the freight vehicle according to claim 1, wherein the structure of the node comprises a node antenna (4), a battery (5), a node board card (6) and a node shell main body (7), and the node board card (6) comprises a 433 communication module, an antenna interface, a power interface, a sensor interface and a micro-control unit.
7. The method for transmitting real-time monitoring data of a freight vehicle according to claim 6, wherein the relay structure comprises a relay antenna (8), a relay board (9) and a relay housing body (10).
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