Unattended truck loading system and unattended truck loading method

Abstract

The invention relates to an unattended loading system and an unattended loading method, and relates to the technical field of bulk material loading, the unattended loading system comprises a stock bin, a loading channel, a metering device, a monitoring prompt device, an industrial personal computer and a vehicle control device, the stock bin communicates with the loading channel and is used for supplying bulk materials to the loading channel, and the metering device is used for metering the bulk materials; the metering device, the monitoring prompt device and the vehicle control device are electrically connected with the industrial personal computer, and the industrial personal computer responds to electric signals output by the metering device, the monitoring prompt device and the vehicle control device and is used for controlling the metering device, the monitoring prompt device and the vehicle control device to act. The processes that the truck enters the truck loading channel, loads and drives out of the truck loading channel are completed under intelligent control and prompt. The bulk cargo loading device has the effect of reducing the labor intensity of bulk cargo loading workers.

Description

Technical Field

[0001] The present application relates to the technical field of bulk material loading, and in particular to an unmanned loading system and an unmanned loading method. Background Art

[0002] Bulk materials are stored in silos, which are connected to a discharge hopper through a pipeline. When bulk materials need to be transported, the truck is first manually directed to move to the bottom of the discharge hopper, and then the manual valve set on the pipeline is manually opened to allow the bulk materials in the silo to be loaded into the truck bed through the discharge hopper. During the process of loading the bulk materials, the truck is manually directed to move so that the bulk materials evenly fill the truck bed. When the bulk materials fill the truck bed, the manual valve is manually closed to complete the entire process of loading the bulk materials.

[0003] In the process of bulk material loading, in order to ensure the accuracy of bulk material loading, manual on-site command and operation are required throughout the process, which leads to high labor intensity of bulk material loading. Summary of the invention

[0004] In order to reduce the manual labor intensity of bulk material loading, the present application provides an unmanned loading system and an unmanned loading method.

[0005] In the first aspect, the present application provides an unattended loading system, which adopts the following technical solution: An unattended loading system, comprising a silo, a loading channel, a metering device, a monitoring and prompting device and an industrial computer; A hopper is fixedly provided at the top of the loading channel, and the hopper is connected to the silo through a feeding pipe; The metering device is arranged at the connection point between the feeding pipe and the hopper, and is used to output the weight signal of the material discharged from the hopper and to open and close the feeding pipe; The monitoring and prompting device is arranged in the loading channel, and is used to output the position signal of the truck and the hopper and the filling signal of the bulk material in the truck hopper, and is used to prompt the truck driver to move and stop and drive out of the loading channel; The industrial computer is arranged in the central control room of the silo and is electrically connected to the metering device and the monitoring and prompting device respectively. The industrial computer responds to the position signal and is used to control the metering device to open the material discharge pipe and control the monitoring and prompting device to prompt the truck driver to stop the vehicle; The industrial computer responds to the loading signal and is used to control the monitoring prompting device to prompt the truck driver to move the truck; The industrial computer responds to the weight signal and is used to control the metering device to close the discharge pipe and control the monitoring prompt device to prompt the truck driver to drive out of the loading channel.

[0006] By adopting the above technical scheme, after the truck moves into the loading channel, the monitoring and prompting device can output the position signal of the truck and the hopper and the filling signal of the bulk material in the truck bucket. The industrial computer can control the monitoring and prompting device to prompt the truck driver to stop moving according to the position signal so that the hopper accurately corresponds to the truck bucket. The industrial computer can control the metering device to open the discharge pipe according to the position signal so that the bulk material can be loaded into the truck bucket. The metering device can output the weight signal of the hopper discharge. The industrial computer can control the monitoring and prompting device to prompt the truck driver to move and stop according to the filling signal so that the bulk material fills the truck bucket evenly. The industrial computer can control the metering device to close the discharge pipe according to the weight signal, and can control the monitoring and prompting device to prompt the truck driver to drive out of the loading channel. During the whole process of loading, the truck driver only needs to start the truck according to the prompt, so that the whole process of bulk material loading realizes intelligent perception, intelligent control and intelligent prompting, and no manual supervision is required to assist in loading the bulk material, thereby reducing the labor intensity of bulk material loading.

[0007] Optionally, the metering device includes an electric regulating valve and a chute scale, which are sequentially arranged between the discharge pipe and the hopper, the electric regulating valve connects the discharge pipe and the chute scale, the chute scale connects the electric regulating valve and the hopper, the electric regulating valve is used to open and close the discharge pipe, the chute scale is used to output a weight signal, the industrial computer is electrically connected to the electric regulating valve and the chute scale, respectively, the industrial computer responds to the position signal and is used to control the electric regulating valve to open the discharge pipe, and the industrial computer responds to the weight signal and is used to control the electric regulating valve to close the discharge pipe.

[0008] By adopting the above technical solution, the electronically controlled regulating valve realizes the opening and closing of the discharge pipe, the chute scale realizes the weighing of the bulk material discharge, and realizes the output of the weight signal, so that the industrial computer can control the opening of the discharge pipe based on the position signal, and can control the closing of the discharge pipe based on the weight signal.

[0009] Optionally, the monitoring and prompting device includes a three-dimensional imaging radar and a voice announcer. The three-dimensional imaging radar is fixedly installed at the top of the loading channel and faces the unloading end of the hopper. The three-dimensional imaging radar is used to output position signals and loading signals. The voice announcer is fixedly installed in the loading channel and is used to play voice prompting the truck driver to move and stop and drive out of the loading channel. The industrial computer is electrically connected to the three-dimensional imaging radar and the voice announcer, respectively. The industrial computer responds to the position signal and is used to control the voice announcer to play voice prompting the truck driver to stop moving. The industrial computer responds to the loading signal and is used to control the voice announcer to play voice prompting the truck driver to move and stop. The industrial computer responds to the weight signal and is used to control the voice announcer to play voice prompting the driver to drive out of the loading channel.

[0010] By adopting the above technical solution, the three-dimensional imaging radar can detect the position of the truck and the hopper to realize the output of the position signal, the three-dimensional imaging radar can detect the filling status of the bulk material in the truck hopper to realize the output of the filling signal, and the voice announcer can play the voice of the corresponding situation to the truck driver to prompt the truck driver for each step of the operation, so that the industrial computer can control the voice announcer to convey the corresponding voice prompts to the truck driver based on the position signal, the filling signal and the weight signal, so that the truck driver can complete the whole process of loading by relying on the voice prompts.

[0011] Optionally, a vehicle control device is provided at the end of the loading channel, and the vehicle control device includes a barrier barrier and a license plate reader. The barrier barrier is fixed on the ground at the end of the loading channel and is used to intercept or release trucks. The license plate reader is fixed on the barrier barrier and is used to output the license plate signal of the truck. The industrial computer is electrically connected to the barrier barrier and the license plate reader, respectively. The industrial computer responds to the license plate signal and is used to control the barrier barrier to intercept or release the truck.

[0012] By adopting the above technical solution, the license plate recognition device can be used to identify whether the truck to be entered into the loading channel is the truck to be loaded, thereby improving the manageability of bulk material loading. At the same time, by setting a gate stopper, trucks that are not to be loaded can be intercepted.

[0013] Optionally, a transition pipe is connected between the chute scale and the hopper, and a material level sensor is arranged in the transition pipe. The material level sensor is used to output a material level signal of the bulk material in the transition pipe. The electric control valve is used to adjust the discharge flow rate of the bulk material. The material level sensor is electrically connected to the industrial computer. The industrial computer responds to the material level signal and is used to control the electric control valve to adjust the discharge flow rate of the bulk material.

[0014] By adopting the above technical solution, the material level signal output by the material level sensor can monitor the material level at the discharge end of the chute scale. When the material level signal exceeds the preset material level value, the industrial computer can promptly control the electric regulating valve to reduce the discharge flow rate of the bulk material, so that the chute scale is not easily blocked by bulk materials.

[0015] Optionally, a dredging hole is provided on the transition pipe.

[0016] By adopting the above technical solution, when the transition pipe is blocked, the bulk material in the transition pipe can be cleared through the clearing hole, so that the transition pipe can be repaired and cleared in time when it is blocked.

[0017] Optionally, the monitoring and prompting device also includes a display screen, which is arranged at the end of the loading channel and is electrically connected to an industrial computer. The industrial computer is used to control the display screen to display the voice played by the voice announcer in the form of text.

[0018] By adopting the above technical solution, the voice played by the voice announcer is displayed in text form on the display screen, making it difficult for truck drivers to make wrong operations due to mishearing.

[0019] Optionally, an abnormal intervention device is provided in the loading channel, and the abnormal intervention device includes a video monitor and a pair of voice intercoms. The video monitor and one of the voice intercoms are fixedly installed in the loading channel, and the other voice intercom is fixedly installed in the central control room. The video monitor is electrically connected to the industrial computer and is used to output the picture signal in the loading channel to the industrial computer. The pair of voice intercoms are used to convey intercom signals.

[0020] By adopting the above technical solution, when abnormal operations occur at the loading site, the central control personnel in the central control room can communicate with the on-site truck driver through a pair of voice intercoms based on the picture signal, so that the truck driver can be aware of the abnormal situation of the on-site loading in time.

[0021] Optionally, the abnormal intervention device also includes a wireless remote control, which is fixed in the central control room. The wireless remote control is electrically connected to the electric regulating valve and the barrier barrier respectively. The wireless remote control is used to control the electric regulating valve to switch the discharge pipe, and to control the barrier barrier to intercept or release the truck.

[0022] By adopting the above technical solution, when the central control personnel find that the barrier gate stopper or the electric regulating valve is operating abnormally based on the image signal, the central control personnel can directly operate the barrier gate stopper or the electric regulating valve for normal operation through the wireless remote control.

[0023] In the second aspect, the present application provides an unattended loading method, which adopts the following technical solution: An unattended loading method, according to the unattended loading system described above, comprises the following steps: S1 Truck in place: The truck driver drives the truck to the front of the barrier barrier; S2 License plate recognition: The license plate recognizer recognizes the license plate of the truck and outputs the license plate signal to the industrial computer, which judges the license plate signal; S3 Truck moving in: When the license plate signal is not the license plate of the truck to be loaded, the industrial computer controls the barrier barrier to intercept the truck. When the license plate signal is the license plate of the truck to be loaded, the industrial computer controls the barrier barrier to release the truck. After the barrier barrier is released, the driver drives the truck into the loading channel. S4 Truck Positioning: After the truck moves into the loading channel, the 3D imaging radar outputs the position signal of the truck and the hopper. When the position signal reaches the preset position value, the industrial computer controls the voice announcer to play a voice prompting the truck driver to stop moving, so that the truck and the hopper are accurately positioned; S5 Truck loading: When the position signal reaches the preset position value, the industrial computer controls the electric regulating valve to open the discharge pipe, so that the bulk material is loaded into the truck bucket from the discharge pipe, chute scale and hopper, and the chute scale outputs the weight signal of the hopper discharge; S6 Truck shifting: The 3D imaging radar outputs the filling signal of bulk materials in the truck bed. When the filling signal reaches the preset filling value, the industrial computer controls the voice announcer to play a voice prompting the truck driver to move and stop. The truck driver starts moving and brakes the truck according to the voice instructions. S7 The truck is fully loaded: repeat step S6 until the weight signal reaches the preset weight value, the industrial computer controls the electric regulating valve to close the discharge pipe, and controls the voice announcer to play a voice prompting the driver to leave the loading channel; S8 Truck driving out: The truck driver drives the truck out of the loading channel according to the voice instructions, completing the unattended bulk material loading operation.

[0024] By adopting the above technical solutions, intelligent perception of bulk material loading is realized through license plate recognition, three-dimensional imaging radar and chute scale, intelligent control of bulk material loading is realized through the control of gate stopper and electric regulating valve by industrial computer, and intelligent prompt is realized through the control of voice announcer by industrial computer, so that bulk material loading can be realized by intelligent operation, without the need for manual assistance in bulk material loading, thus reducing the labor intensity of bulk material loading.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By installing three-dimensional imaging radar, voice announcer, electric regulating valve and chute scale, bulk material loading is made intelligent, reducing the labor intensity of bulk material loading; 2. The installation of barrier barriers and license plate readers can help improve the manageability of trucks; 3. By setting up video monitors, voice intercoms and wireless remote controls, the central control personnel in the central control room can communicate by voice and directly intervene in abnormal operations at the loading site. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 yes Figure 1 Magnified view at A in the middle; Figure 3 It is a schematic diagram of the structure of a three-dimensional imaging radar, a voice announcer, a video monitor and a voice intercom; Figure 4 yes Figure 3 Magnified view at B.

[0027] Description of reference numerals: 1. Silo; 2. Loading channel; 21. Hopper; 22. Feed pipe; 3. Measuring device; 31. Electric regulating valve; 32. Chute scale; 33. Transition pipe; 331. Dredge hole; 34. Material level sensor; 4. Monitoring and prompting device; 41. Three-dimensional imaging radar; 42. Voice announcer; 43. Display screen; 5. Industrial computer; 6. Vehicle control device; 61. Gate stopper; 62. License plate reader; 7. Abnormal intervention device; 71. Video monitor; 72. Voice intercom; 73. Wireless remote control. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] The present application embodiment discloses an unattended loading system. Figure 1 and Figure 2 An unattended loading system includes a silo 1, a loading channel 2, a metering device 3, a monitoring and prompting device 4, an industrial computer 5, a vehicle control device 6 and an abnormal intervention device 7.

[0030] Reference Figure 1 The silo 1 is vertically arranged, the loading channel 2 is horizontally arranged and located on one side of the silo 1, and a hopper 21 is fixedly penetrated at the top of the loading channel 2. The hopper 21 is a dust suppression hopper, and the hopper 21 is connected to the silo 1 through a discharge pipe 22.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The metering device 3 includes an electric regulating valve 31 and a chute scale 32. The monitoring and prompting device 4 includes a three-dimensional imaging radar 41, a voice announcer 42 and a display screen 43. Two groups of vehicle control devices 6 are provided, and are respectively arranged at both ends of the loading channel 2. The vehicle control device 6 includes a gate stopper 61 and a license plate recognizer 62. The abnormal intervention device 7 includes a video monitor 71, a pair of voice intercoms 72 and a wireless remote control 73.

[0032] Reference Figure 1 The electric regulating valve 31 and the chute scale 32 are arranged between the discharge pipe 22 and the hopper 21 in sequence. The electric regulating valve 31 connects the discharge pipe 22 and the chute scale 32, and the chute scale 32 connects the electric regulating valve 31 and the hopper 21. The electric regulating valve 31 is used to open and close the discharge pipe 22 and adjust the discharge flow rate of bulk material, and the chute scale 32 is used to output the weight signal of the discharge of the hopper 21.

[0033] Reference Figure 1 , Figure 3 and Figure 4A transition pipe 33 is connected between the chute scale 32 and the hopper 21. A material level sensor 34 is arranged in the transition pipe 33. The material level sensor 34 is used to output a material level signal of the bulk material in the transition pipe 33. A dredging hole 331 is opened on the transition pipe 33 for dredging blocked bulk material.

[0034] Reference Figure 3 The three-dimensional imaging radar 41 is fixedly installed at the top of the loading channel 2 and faces the unloading end of the hopper 21. The three-dimensional imaging radar 41 is used to output the position signal of the truck and the hopper 21 and the filling signal of the bulk material in the truck bucket. The voice announcer 42 is fixedly installed in the loading channel 2 and is used to play the voice prompting the truck driver to move and stop and drive out of the loading channel 2.

[0035] Reference Figure 1 and Figure 3 There are two display screens 43, which are respectively located at the two ends of the loading channel 2. The display screens 43 face the interior of the loading channel 2 and are fixed on the ground. The display screens 43 are used to display the voice played by the voice announcer 42 in the form of text, and are used to display the weight signal in real time in the form of text.

[0036] Reference Figure 1 The barrier barrier 61 is fixed on the ground at the end of the loading channel 2 and is used to intercept or release the truck. The license plate recognizer 62 is fixed on the barrier barrier 61 and is used to output the license plate signal of the truck.

[0037] Reference Figure 2 and Figure 3 The industrial computer 5 is arranged in the central control room of the silo 1, the video monitor 71 and one of the voice intercoms 72 are fixedly arranged in the loading channel 2, and the other voice intercom 72 is fixedly arranged in the central control room. The video monitor 71 is electrically connected to the industrial computer 5 and is used to output the picture signal in the loading channel 2 to the industrial computer 5, and a pair of voice intercoms 72 are used to convey intercom signals.

[0038] Reference Figure 1 and Figure 2 The wireless remote controller 73 is fixed in the central control room. The wireless remote controller 73 is electrically connected to the electric regulating valve 31 and the barrier barrier 61 respectively. The wireless remote controller 73 is used to control the electric regulating valve 31 to switch the discharge pipe 22, and to control the barrier barrier 61 to intercept or release the truck.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The industrial computer 5 is electrically connected to the electric regulating valve 31, the chute scale 32, the material level sensor 34, the three-dimensional imaging radar 41, the voice announcer 42, the display screen 43, the gate stopper 61 and the license plate recognizer 62 respectively.

[0040] Reference Figure 1 and Figure 2 The industrial computer 5 responds to the license plate signal and is used to control the barrier barrier 61 to intercept or release the truck.

[0041] Reference Figure 2 and Figure 3 The industrial computer 5 responds to the position signal and is used to control the voice announcer 42 to play a voice prompting the truck driver to stop moving.

[0042] Reference Figure 1 and Figure 2 The industrial computer 5 responds to the position signal and is used to control the electric regulating valve 31 to open the discharge pipe 22.

[0043] Reference Figure 2 and Figure 3 The industrial computer 5 responds to the loading signal and is used to control the voice announcer 42 to play a voice prompting the truck driver to move and stop.

[0044] Reference Figure 1 and Figure 2 The industrial computer 5 responds to the material level signal and is used to control the electric regulating valve 31 to adjust the discharge flow rate of the bulk material.

[0045] The industrial computer 5 responds to the weight signal and is used to control the electric regulating valve 31 to close the discharge pipe 22 .

[0046] Reference Figure 2 and Figure 3 The industrial computer 5 responds to the weight signal and is used to control the voice announcer 42 to play a voice prompting the driver to exit the loading channel 2.

[0047] Reference Figure 1 and Figure 2 The industrial computer 5 responds to the weight signal and is used to control the gate stopper 61 located at the exit end of the loading channel 2 to release the truck.

[0048] Reference Figure 1 , Figure 2 and Figure 3 The industrial computer 5 responds to the position signal, the filling signal and the weight signal, and is used to control the display screen 43 to display the voice played by the voice announcer 42 in the form of text. The industrial computer 5 responds to the weight signal, and is used to control the display screen 43 to display the weight signal in real time in the form of text.

[0049] The implementation principle of an unattended loading system in an embodiment of the present application is as follows: when in use, the driver drives the truck to one of the end positions of the loading channel 2, the license plate recognizer 62 outputs the license plate signal of the truck, and the industrial computer 5 controls the gate stopper 61 to open according to the license plate signal to release the truck; the truck driver drives the truck into the loading channel 2, the three-dimensional imaging radar 41 outputs a position signal, and the industrial computer 5 controls the voice announcer 42 to play a voice prompting the truck driver to stop moving and controls the electric regulating valve 31 to open the discharge pipe 22 according to the position signal, so that the bulk material can be accurately loaded into the truck bed; the three-dimensional imaging radar 41 outputs a filling signal, and the industrial computer 5 controls the voice announcer 42 to play a voice prompting the truck driver to move and stop according to the filling signal, so that the bulk material can be evenly loaded into the truck bed.

[0050] The material level sensor 34 outputs a material level signal, and the industrial computer 5 controls the electric regulating valve 31 to adjust the discharge flow rate of the bulk material according to the material level signal, so that the chute scale 32 discharges and weighs the material at a uniform discharge flow rate; the chute scale 32 outputs a weight signal, and the industrial computer 5 controls the electric regulating valve 31 to close the discharge pipe 22, controls the voice announcer 42 to play a voice prompting the driver to exit the loading channel 2, and controls the gate stopper 61 at the truck exit end of the loading channel 2 to open the truck, so that the truck can exit the loading channel 2 after accurate loading according to the voice prompt; the industrial computer 5 controls the display screen 43 to display the voice played by the voice announcer 42 in the form of text, and controls the display screen 43 to display the weight signal in real time in the form of text according to the position signal, the filling signal and the weight signal, so that the truck driver can receive the loading information synchronously through hearing and vision.

[0051] The central control personnel in the central control room direct and communicate about the abnormal situation on site through a pair of voice intercoms 72 according to the picture signal, and directly control the electric regulating valve 31 and the gate stopper 61 by operating the wireless remote control 73 to quickly resolve the abnormal situation of the electric regulating valve 31 and the gate stopper 61 on site.

[0052] This makes bulk material loading intelligent and reduces the labor intensity of bulk material loading.

[0053] The present application also discloses an unattended loading method, which includes the following steps according to the unattended loading system described above: S1 Truck in place: The truck driver drives the truck to the front of the barrier barrier 61; S2 License plate recognition: the license plate recognizer 62 recognizes the license plate of the truck and outputs the license plate signal to the industrial computer 5, which makes a judgment on the license plate signal; S3 Truck moves in: When the license plate signal is not a truck to be loaded, the industrial computer 5 controls the barrier barrier 61 to intercept the truck. When the license plate signal is a truck to be loaded, the industrial computer 5 controls the barrier barrier 61 to release the truck. After the barrier barrier 61 releases the truck, the driver drives the truck into the loading channel 2. S4 Truck positioning: After the truck moves into the loading channel 2, the three-dimensional imaging radar 41 outputs the position signal of the truck and the hopper 21. When the position signal reaches the preset position value, the industrial computer 5 controls the voice announcer 42 to play a voice prompting the truck driver to stop moving, so that the truck and the hopper 21 are accurately positioned. At the same time, the industrial computer 5 controls the display screen 43 to display the content of the voice broadcast in text form; S5 Truck loading: When the position signal reaches the preset position value, the industrial computer 5 controls the electric regulating valve 31 to open the discharge pipe 22, so that the bulk material is loaded into the truck bucket from the discharge pipe 22, the chute scale 32 and the hopper 21, and the chute scale 32 outputs the weight signal of the material discharged from the hopper 21, and the industrial computer 5 controls the display screen 43 to display the weight signal in real time in text form; S6 Truck shifting: The three-dimensional imaging radar 41 outputs a filling signal of bulk materials in the truck bed. When the filling signal reaches a preset filling value, the industrial computer 5 controls the voice announcer 42 to play a voice prompting the truck driver to move and stop. The truck driver starts the truck to move and brake according to the voice instructions. At the same time, the industrial computer 5 controls the display screen 43 to display the content of the voice broadcast in text form; S7 Material level adjustment: the material level sensor 34 outputs a material level signal, and the industrial computer 5 controls the electric regulating valve 31 to adjust the discharge flow rate of the bulk material according to the material level signal; S8 The truck is fully loaded: repeat step S6 until the weight signal reaches the preset weight value, the industrial computer 5 controls the electric regulating valve 31 to close the feeding pipe 22, controls the voice announcer 42 to play a voice prompting the driver to exit the loading channel 2, and controls the gate stopper 61 at the truck exit end of the loading channel 2 to open the truck, and at the same time, the industrial computer 5 controls the display screen 43 to display the content of the voice announcement in text form; S9 Truck driving out: The truck driver drives the truck out of loading channel 2 according to the voice instructions, completing the unattended bulk material loading operation; S10 Abnormal control: The central control personnel in the central control room observe the image signal output by the video monitor 71 to the industrial computer 5, and communicate with the site through a pair of voice intercoms 72. The central control personnel control the electric regulating valve 31 and the barrier gate stopper 61 through the wireless remote control 73 to directly solve the abnormal situation of the electric regulating valve 31 and the barrier gate stopper 61.

[0054] The above-mentioned loading method uses intelligent perception, intelligent control and intelligent prompts to enable bulk material loading without the need for manual on-site assistance, thereby realizing the intelligence of the entire bulk material loading process, improving the efficiency of bulk material loading, and reducing the manual labor intensity of bulk material loading.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An unattended loading system, characterized in that: It comprises a silo (1), a loading channel (2), a metering device (3), a monitoring and prompting device (4) and an industrial computer (5); A hopper (21) is fixedly provided at the top of the loading channel (2), and the hopper (21) is connected to the silo (1) through a feeding pipe (22); The metering device (3) is arranged at the connection point between the feeding pipe (22) and the hopper (21), and the metering device (3) is used to output a weight signal of the material discharged from the hopper (21) and to open and close the feeding pipe (22); The monitoring and prompting device (4) is arranged in the loading passage (2), and is used to output the position signals of the truck and the hopper (21) and the filling signals of the bulk materials in the truck hopper, and is used to prompt the truck driver to move, stop and drive out of the loading passage (2); The industrial computer (5) is arranged in the central control room of the silo (1) and is electrically connected to the metering device (3) and the monitoring and prompting device (4) respectively. The industrial computer (5) responds to the position signal and is used to control the metering device (3) to open the discharge pipe (22) and control the monitoring and prompting device (4) to prompt the truck driver to stop the vehicle; The industrial control computer (5) responds to the loading signal and is used to control the monitoring prompting device (4) to prompt the truck driver to move the truck; The industrial computer (5) responds to the weight signal and is used to control the metering device (3) to close the feeding pipe (22) and to control the monitoring prompt device (4) to prompt the truck driver to drive out of the loading channel (2).

2. The unattended loading system according to claim 1, characterized in that: The metering device (3) comprises an electric regulating valve (31) and a chute scale (32). The electric regulating valve (31) and the chute scale (32) are arranged in sequence between the discharge pipe (22) and the hopper (21). The electric regulating valve (31) is connected to the discharge pipe (22) and the chute scale (32). The chute scale (32) is connected to the electric regulating valve (31) and the hopper (21). The electric regulating valve (31) is used to open and close the discharge pipe (22). The chute scale (32) is used to output a weight signal. The industrial computer (5) is electrically connected to the electric regulating valve (31) and the chute scale (32) respectively. The industrial computer (5) responds to the position signal and is used to control the electric regulating valve (31) to open the discharge pipe (22). The industrial computer (5) responds to the weight signal and is used to control the electric regulating valve (31) to close the discharge pipe (22).

3. The unattended loading system according to claim 2, characterized in that: The monitoring and prompting device (4) comprises a three-dimensional imaging radar (41) and a voice announcer (42). The three-dimensional imaging radar (41) is fixedly arranged at the top of the loading channel (2) and faces the unloading end of the hopper (21). The three-dimensional imaging radar (41) is used to output a position signal and a loading signal. The voice announcer (42) is fixedly arranged in the loading channel (2) and is used to play a voice prompting the truck driver to move and stop and drive out of the loading channel (2). The industrial control computer (5) is electrically connected to the three-dimensional imaging radar (41) and the voice announcer (42) respectively. The industrial control computer (5) responds to the position signal and is used to control the voice announcer (42) to play a voice prompting the truck driver to stop moving. The industrial control computer (5) responds to the loading signal and is used to control the voice announcer (42) to play a voice prompting the truck driver to move and stop. The industrial control computer (5) responds to the weight signal and is used to control the voice announcer (42) to play a voice prompting the driver to drive out of the loading channel (2).

4. The unattended loading system according to claim 3, characterized in that: A vehicle control device (6) is provided at the end of the loading channel (2), and the vehicle control device (6) comprises a barrier barrier (61) and a license plate identifier (62). The barrier barrier (61) is fixedly mounted on the ground at the end of the loading channel (2) and is used to intercept or release a truck. The license plate identifier (62) is fixedly mounted on the barrier barrier (61) and is used to output a license plate signal of the truck. The industrial control computer (5) is electrically connected to the barrier barrier (61) and the license plate identifier (62) respectively. The industrial control computer (5) responds to the license plate signal and is used to control the barrier barrier (61) to intercept or release the truck.

5. The unattended loading system according to claim 4, characterized in that: A transition pipe (33) is connected between the chute scale (32) and the hopper (21). A material level sensor (34) is arranged in the transition pipe (33). The material level sensor (34) is used to output a material level signal of the bulk material in the transition pipe (33). The electric control valve (31) is used to adjust the discharge flow rate of the bulk material. The material level sensor (34) is electrically connected to the industrial control computer (5). The industrial control computer (5) responds to the material level signal and is used to control the electric control valve (31) to adjust the discharge flow rate of the bulk material.

6. The unattended loading system according to claim 5, characterized in that: The transition pipe (33) is provided with a dredging hole (331).

7. The unattended loading system according to claim 4, characterized in that: The monitoring prompt device (4) also includes a display screen (43), which is arranged at the end of the loading channel (2) and is electrically connected to the industrial control computer (5). The industrial control computer (5) is used to control the display screen (43) to display the voice played by the voice announcer (42) in the form of text.

8. The unattended loading system according to claim 4, characterized in that: An abnormality intervention device (7) is arranged in the loading channel (2), and the abnormality intervention device (7) comprises a video monitor (71) and a pair of voice intercoms (72). The video monitor (71) and one of the voice intercoms (72) are both fixedly arranged in the loading channel (2), and the other voice intercom (72) is fixedly arranged in the central control room. The video monitor (71) is electrically connected to the industrial computer (5) and is used to output the image signal in the loading channel (2) to the industrial computer (5), and the pair of voice intercoms (72) are used to transmit intercom signals.

9. The unattended loading system according to claim 8, characterized in that: The abnormal intervention device (7) further comprises a wireless remote controller (73), which is fixedly mounted in the central control room. The wireless remote controller (73) is electrically connected to the electric regulating valve (31) and the barrier barrier (61), respectively. The wireless remote controller (73) is used to control the electric regulating valve (31) to switch the discharge pipe (22), and is used to control the barrier barrier (61) to intercept or release the truck.

10. An unattended loading method, according to an unattended loading system according to any one of claims 4 to 9, characterized in that: The following steps are involved: S1 Truck in place: The truck driver drives the truck to the front of the barrier barrier (61); S2 License plate recognition: The license plate recognizer (62) recognizes the license plate of the truck and outputs the license plate signal to the industrial control computer (5), which judges the license plate signal; S3 Truck moves in: when the license plate signal is not the license plate of the truck to be loaded, the industrial control computer (5) controls the barrier gate bar device (61) to intercept the truck; when the license plate signal is the license plate of the truck to be loaded, the industrial control computer (5) controls the barrier gate bar device (61) to release the truck, and the driver drives the truck into the loading channel (2) after the barrier gate bar device (61) releases the truck; S4 Truck positioning: After the truck moves into the loading channel (2), the three-dimensional imaging radar (41) outputs the position signal of the truck and the hopper (21). When the position signal reaches the preset position value, the industrial computer (5) controls the voice announcer (42) to play a voice prompting the truck driver to stop moving, so that the truck and the hopper (21) are accurately positioned; S5 Truck loading: When the position signal reaches the preset position value, the industrial computer (5) controls the electric regulating valve (31) to open the discharge pipe (22), so that the bulk material is loaded into the truck bucket from the discharge pipe (22), the chute scale (32) and the hopper (21), and the chute scale (32) outputs the weight signal of the material discharged from the hopper (21); S6 Truck shifting: The three-dimensional imaging radar (41) outputs a filling signal of bulk materials in the truck bed. When the filling signal reaches a preset filling value, the industrial computer (5) controls the voice announcer (42) to play a voice prompting the truck driver to move or stop. The truck driver starts moving and brakes the truck according to the voice instructions. S7 The truck is fully loaded: step S6 is repeated until the weight signal reaches the preset weight value, the industrial computer (5) controls the electric regulating valve (31) to close the unloading pipe (22), and controls the voice announcer (42) to play a voice prompting the driver to leave the loading channel (2); S8 Truck driving out: The truck driver drives the truck out of the loading channel (2) according to the voice instructions, completing the unattended bulk material loading operation.

Images