CN113916173A - Article length measuring system and method - Google Patents
Article length measuring system and method Download PDFInfo
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- CN113916173A CN113916173A CN202111308776.6A CN202111308776A CN113916173A CN 113916173 A CN113916173 A CN 113916173A CN 202111308776 A CN202111308776 A CN 202111308776A CN 113916173 A CN113916173 A CN 113916173A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
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Abstract
The present application relates to an article length measurement system and method. The system comprises: automatic conveyer, scanning signal transmitting device, scanning signal receiving device, NB signal transmitting device and remote fixed terminal. Adopt this system to measure article length, when measured data is more, can be automatically according to the time difference and automatic conveyer's the transfer rate when the article that awaits measuring shelters from scanning signal, remote calculation reachs the length of the article that awaits measuring and takes notes, has improved measured data's accuracy greatly, has promoted work efficiency. Meanwhile, the NB signal is used for signal transmission, so that the transmission quality is more stable and the transmission speed is faster.
Description
Technical Field
The application relates to the technical field of intelligent measurement, in particular to an article length measuring system and method.
Background
In the existing factory environment, due to the requirements of management and classification, the length of an article is often required to be measured, and the traditional length measurement method usually depends on manual measurement and then is completed by recording obtained data. And the manual measurement precision is relatively poor, and when the measured data is too much, the recording process is tedious, the working efficiency is too low, and mistakes are easily made.
Disclosure of Invention
In view of the above, it is desirable to provide a system and a method for measuring the length of an article.
An article length measurement system, comprising:
the automatic conveying device is used for conveying the object to be detected;
the scanning signal transmitting device is arranged at one side of the automatic conveying device and is used for transmitting scanning signals;
the scanning signal receiving device is arranged on the other side of the automatic conveying device, is arranged opposite to the scanning signal transmitting device and is used for receiving the scanning signals transmitted by the scanning signal transmitting device; the object to be detected is transmitted on the automatic transmission device, and on-off information of the scanning signal is obtained based on the condition that the scanning signal is interrupted and the scanning signal is received again in the transmission process of the object to be detected; the object to be detected shields the scanning signal receiving device to interrupt the scanning signal, and the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device; the scanning signal receiving device transmits the on-off information of the scanning signal to an NB signal transmitting device;
the NB signal transmitting device is connected with the scanning signal receiving device and used for receiving the on-off information of the scanning signal, processing the on-off information of the scanning signal into a first NB signal in real time and transmitting the first NB signal to the remote fixed terminal;
and the remote fixed terminal is used for receiving the first NB signal, acquiring the time difference between the interruption of the scanning signal and the re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculating the length of the object to be detected according to the time difference.
In one embodiment, the scan signal on/off information includes: when the object to be detected shields the scanning signal receiving device, first information is generated when the scanning signal is interrupted, and after the object to be detected completely passes through the scanning signal receiving device, second information is generated when the scanning signal is received again; wherein the first information comprises a first time and the second information comprises a second time;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the first time and the second time.
In one embodiment, the scan signal on/off information includes: when the object to be detected shields the scanning signal receiving device, first information is generated when the scanning signal is interrupted, and after the object to be detected completely passes through the scanning signal receiving device, second information is generated when the scanning signal is received again;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the received first information and the received second information.
In one embodiment, the article length measuring system further comprises:
the speed measuring device is respectively connected with the automatic conveying device and the NB signal transmitting device and is used for measuring the real-time conveying speed of the object to be detected, converting the real-time conveying speed of the object to be detected into an electric signal and transmitting the electric signal to the NB signal transmitting device;
the NB signal transmitting device is also used for receiving the electric signal transmitted by the speed measuring device, processing the electric signal into a second NB signal in real time and transmitting the second NB signal to the remote fixed terminal;
the remote fixed terminal is further used for receiving the second NB signal, reading the real-time transmission speed information of the object to be detected in the second NB signal, and calculating the length of the object to be detected according to the real-time transmission speed of the object to be detected and the time difference.
In one embodiment, the speed measuring device is a speed sensor.
In one embodiment, the scanning signal transmitting device, the scanning signal receiving device, the NB signal transmitting device and the speed measuring device are all provided with mounting buckles at the bottom, and the mounting buckles are connected with the guide rail of the automatic conveying device in a buckle mounting manner.
In one embodiment, an NB signal transmitting device is internally provided with an NB sim card, and when a plurality of devices transmit data information to the NB signal transmitting device at the same time, the NB sim card distinguishes the transmitted data information and determines a transmitting device corresponding to the transmitted data information; the transmitted data information comprises on-off information of the scanning signals or electric signals transmitted by the speed measuring device.
In one embodiment, the scanning signal is an infrared scanning signal.
A method of article length measurement, the method comprising:
when an article to be detected is conveyed on an automatic conveying device, acquiring on-off information of a scanning signal based on the condition that the scanning signal of the article to be detected is interrupted and the scanning signal is received again in the conveying process; the object to be detected shields the scanning signal receiving device to interrupt the scanning signal, and the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device;
converting the on-off information of the scanning signal into a first NB signal in real time and sending the first NB signal to a remote fixed terminal;
and after the remote fixed terminal receives the first NB signal, acquiring the time difference between the interruption of the scanning signal and the re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculating the length of the object to be measured according to the time difference.
In one embodiment, the method further comprises:
acquiring real-time transmission speed information of an automatic transmission device, wherein the real-time transmission speed information is the real-time transmission speed information of the object to be detected;
converting the real-time transmission speed information of the object to be detected into a second NB signal and then sending the second NB signal to a remote fixed terminal;
and after receiving the real-time transmission speed information of the object to be detected, the remote fixed terminal calculates the length of the object to be detected according to the real-time transmission speed of the object to be detected and the time difference.
According to the article length measuring system, the article to be measured is conveyed through the automatic conveying device, the article to be measured shields the scanning signal receiving device in the conveying process to cause interruption of scanning signal receiving, after the article to be measured completely passes through the scanning signal receiving device, the scanning signal is received again, the on-off information of the scanning signal is transmitted to the remote fixed terminal through the NB signal transmitting device, and the length of the article to be measured is calculated through the time difference in the on-off information by the remote fixed terminal. The system in the scheme of the use measures the length of the article, when the measured data is more, the length of the article to be measured can be obtained through remote calculation and recorded automatically according to the time difference when the article to be measured shields the scanning signal and the transmission speed of the automatic transmission device, the accuracy of the measured data is greatly improved, and the working efficiency is improved. Meanwhile, the NB signal is used for signal transmission, so that the transmission quality is more stable and the transmission speed is faster.
Drawings
FIG. 1 is a schematic diagram of an article length measuring system in one embodiment;
FIG. 2 is a schematic diagram of a measuring device in an article length measuring system according to an embodiment;
fig. 3 is a schematic flow chart of a method for measuring the length of an article according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The application provides an article length measuring system, as shown in fig. 1. The article length measurement system may be applied in various areas where article length measurements are desired. Wherein, this system comprises measuring equipment and remote fixed terminal 500, and measuring equipment includes: an automatic transmission apparatus 100, a scan signal transmitting apparatus 200, a scan signal receiving apparatus 300, and an NB signal transmitting apparatus 400. Specifically, the automatic conveying device 100 is used for automatically conveying the object to be detected, the scanning signal transmitting device 200 and the scanning signal receiving device 300 are used for transmitting and receiving scanning signals, on-off information of the scanning signals generated in the conveying process of the object to be detected is converted into NB signals through the NB signal transmitting device 400, and then the NB signals are sent to the remote fixed terminal 500; and the remote fixed terminal 500 calculates the length of the object to be detected according to the on-off information of the scanning signal.
The automatic conveying device 100 may be, but is not limited to, various devices capable of automatically conveying articles, such as an automatic conveyor belt, an automatic conveying shaft, an automatic conveying table, and the like. The remote fixed terminal 500 may be, but is not limited to, various personal computers, notebook computers, tablet computers, and the like. The application provides an article length measurement system can be applied to factory building region.
In one embodiment, as shown in FIG. 1, there is provided an article length measuring system comprising the following:
an automatic transfer device 100 for transferring an object to be tested;
a scanning signal emitting device 200 disposed at one side of the automatic transfer device 100 for emitting a scanning signal;
a scanning signal receiving device 300 disposed at the other side of the automatic conveying device 100, opposite to the scanning signal transmitting device 200, for receiving the scanning signal transmitted by the scanning signal transmitting device 200; the article to be detected is transmitted on the automatic transmission device 100, and on-off information of the scanning signal is obtained based on the conditions that the scanning signal of the article to be detected is interrupted and the scanning signal is received again in the transmission process; the object to be detected shields the scanning signal receiving device 300 to interrupt the scanning signal, and the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device 300; the scanning signal receiving device 300 transmits the on-off information of the scanning signal to the NB signal transmitting device 400;
the NB signal transmitting device 400 is connected to the scanning signal receiving device 300, and is configured to receive the scanning signal on-off information, process the scanning signal on-off information into a first NB signal in real time, and transmit the first NB signal to the remote fixed terminal 500;
and the remote fixed terminal 500 is configured to receive the first NB signal, obtain a time difference between interruption of the scanning signal and re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculate the length of the object to be measured according to the time difference.
The automatic conveying device 100 may be, but is not limited to, various devices capable of automatically conveying articles, such as an automatic conveyor belt, an automatic conveying shaft, and the like. The items to be measured may be all items for which a length measurement is required.
Specifically, when a certain article needs to be measured in length, the article is placed on the automatic conveying device 100, and the automatic conveying device 100 conveys the article to be measured so that the article to be measured is in a moving state.
In one embodiment, the conveying direction of the automatic conveyor 100 is horizontally moved left and right, and the object to be measured is horizontally moved on the automatic conveyor 100 at the same speed as the automatic conveyor 100.
In one embodiment, the conveying direction of the automatic conveyor 100 is vertically moved up and down, and the object to be measured is vertically moved on the automatic conveyor 100 at the same speed as the automatic conveyor 100.
In one embodiment, the automated transfer device 100 is driven by a servo motor.
Specifically, the scan signal transmitting device 200 is installed at one side of the automatic transfer device 100, and is provided with a scan signal transmitting terminal inside thereof for transmitting a stable scan signal in one direction. It is understood that the scanning signal may be, but is not limited to, a laser signal, an infrared signal, etc.
In one embodiment, the scanning signal transmitting device 200 is powered by an internal dry battery.
The scanning signal receiving device 300 is disposed on the other side of the automatic transmission device 100, is disposed opposite to the scanning signal receiving device 200, and is configured to measure whether the two are aligned with each other through a special device during installation, so as to avoid the problem that the scanning signal is not received accurately enough. The signal sensor is arranged in the device, so that the on-off condition of the scanning signal can be accurately sensed. The device is internally provided with a data processing mainboard which can receive and record the on-off condition of the scanning signal, and meanwhile, the on-off information of the scanning signal is converted into data, so that the subsequent transmission is facilitated.
Specifically, the object to be tested is transported on the automatic transporting device 100, and when the object to be tested passes through the scanning signal receiving device 300, the object to be tested shields the scanning signal receiving device 300, so that the receiving of the scanning signal is forcibly interrupted, and after the object to be tested completely passes through the scanning signal receiving device 300, the scanning signal can be received again. The on-off change of the scanning signal causes the resistance value of the resistance of the scanning signal receiving device to change, and the originally stable current in the scanning signal receiving device is caused to change, so that the on-off signal of the scanning signal is changed into an electric signal; the scanning signal receiving apparatus 300 records and processes the received electrical signal into data, and transmits the data to the NB signal transmitting apparatus 400.
In one embodiment, the scanning signal receiving device 300 is powered by an internal dry cell battery.
In one embodiment, the scanning signal receiving device 300 and the NB signal transmitting device 400 transmit data by wire.
The NB signal refers to a network signal of a narrowband Band Internet of Things (NB-IoT). The NB-IoT is an important branch of the internet of everything, is built in a cellular network, and supports cellular data connection of low-power-consumption equipment in a wide area network, and is also called as a low-power-consumption wide area network. The NB-IoT focuses on the market of low-power consumption and wide-coverage Internet of things, and has four characteristics: the method has the advantages that firstly, the wide coverage is realized, the improved indoor coverage is provided, and under the same frequency band, the NB-IoT gains 20dB more than the existing network, which is equivalent to the capability of improving the coverage area by 100 times; the system has the capacity of supporting connection, one NB-IoT sector can support 10 ten thousand connections, and low delay sensitivity, ultralow equipment cost, low equipment power consumption and optimized network architecture are supported; thirdly, the power consumption is lower, and the standby time of the NB-IoT terminal module can be as long as 10 years; fourth, lower module cost, enterprise expects a single contiguous module to exceed $ 5. NB-IoT is widely used in a variety of vertical industries.
The NB signal transmitting apparatus 400 is a device capable of transmitting NB signals, and is provided with an NB signal transmitting module therein, and is capable of processing received data and signals into NB signals in real time, and an antenna is provided at the top of the NB signal transmitting apparatus, and is configured to stably transmit NB signals to corresponding remote fixed terminals 500 according to addresses of the remote fixed terminals 500 input by the NB signal transmitting apparatus 400 in advance.
Specifically, the NB signal transmitting device 400 receives the scan signal on-off information data transmitted by the scan signal receiving device 300, processes the data into a first NB signal in real time, and transmits the first NB signal to the corresponding remote fixed terminal 500 through the antenna.
In one embodiment, NB signal transmission device 400 is powered by internal dry cell batteries.
The remote fixed terminal 500 can be placed at any position of the factory, and is not affected by the area space. Each remote fixed terminal 500 has its own dedicated address, and the remote fixed terminal 500 is configured with a dedicated decoding program capable of decoding NB signals into data to be recorded. It is understood that the remote fixed terminal 500 is powered by an external power source.
Specifically, after receiving the first NB signal, the remote fixed terminal 500 decodes the first NB signal by a decoding program configured in advance to obtain scan signal on-off information transmitted by the first NB signal, records the scan signal on-off information, obtains a time difference between the scan signal interruption and the scan signal re-reception in the information, and calculates the length of the object to be measured according to the time difference and the uniform speed of the automatic conveying device 100.
According to the article length measuring system, the article to be measured is conveyed through the automatic conveying device 100, the article to be measured shields the scanning signal receiving device 300 in the conveying process to cause interruption of scanning signal receiving, when the article to be measured completely passes through the scanning signal receiving device 300, the scanning signal is received again, the on-off information of the scanning signal is transmitted to the remote fixed terminal 500 through the NB signal transmitting device 400, and the remote fixed terminal 500 calculates the length of the article to be measured through the time difference in the on-off information. The system in the scheme of the use measures the length of the article, when the measured data is more, the length of the article to be measured can be obtained through remote calculation and recorded automatically according to the time difference when the article to be measured shields the scanning signal and the transmission speed of the automatic transmission device, the accuracy of the measured data is greatly improved, and the working efficiency is improved. Meanwhile, the NB signal is used for signal transmission, so that the transmission quality is more stable and the transmission speed is faster.
In one embodiment, the scan signal on/off information comprises: the first information when the object to be detected shields the scanning signal receiving device 300 to interrupt the scanning signal, and the second information when the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device 300; wherein the first information comprises a first time and the second information comprises a second time;
the remote fixing terminal 500 calculates the length of the object to be measured according to the time difference between the first time and the second time.
Specifically, the object to be tested blocks the scanning signal receiving device 300, so that first information is generated when the scanning signal is interrupted, wherein the first information includes the time corresponding to the moment of interruption of the scanning signal, which is the first time; after the article to be detected completely passes through the scanning signal receiving device 300, second information is generated when the scanning signal is received again, and the second information includes the time corresponding to the moment when the scanning signal is received again; the scan signal receiving apparatus 300 transmits scan signal on/off information including the first time and the second time to the NB signal transmitting apparatus 400, and the NB signal transmitting apparatus 400 converts the information data into an NB signal in real time and transmits the NB signal to the remote fixed terminal 500. The remote fixing terminal 500 calculates the length of the object to be measured according to the time difference between the first time and the second time.
In this embodiment, the first time and the second time are recorded in the scan signal on-off information and are converted into the first NB signal together, and the first NB signal is sent to the remote fixed terminal 500, and the remote fixed terminal 500 calculates the length of the article according to the time difference between the first time and the second time, so that the length of the article can be measured more automatically, and the accuracy of the measured data is improved.
In one embodiment, the scan signal on/off information comprises: the first information when the object to be detected shields the scanning signal receiving device 300 to interrupt the scanning signal, and the second information when the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device 300;
the remote fixing terminal 500 calculates the length of the object to be measured according to the time difference between the receipt of the first information and the receipt of the second information.
Specifically, the object to be tested blocks the scanning signal receiving device 300, so that first information is generated when the scanning signal is interrupted, and second information is generated when the scanning signal is received again after the object to be tested completely passes through the scanning signal receiving device 300; the scanning signal receiving device 300 respectively transmits the first information and the second information to the NB signal transmitting device 400, the NB signal transmitting device 400 converts the first information and the second information into a first NB signal in real time and transmits the first NB signal to the remote fixed terminal 500, and the remote fixed terminal 500 calculates the length of the object to be measured according to the time difference between the first information and the second information.
In this embodiment, after the object to be measured blocks the scanning signal receiving device 300, so that the first information generated when the scanning signal is interrupted and the object to be measured completely pass through the scanning signal receiving device 300, the second information generated when the scanning signal is re-received is respectively converted into the first NB signal by the NB signal transmitting device 400 and transmitted to the remote fixed terminal 500, and the remote fixed terminal 500 calculates the length of the object to be measured according to the time difference between the received first information and the received second information, so that the length of the object to be measured can be measured more automatically, and the accuracy of the measured data is improved.
In one embodiment, the article length measuring system further comprises:
the speed measuring device 600 is respectively connected with the automatic conveying device 100 and the NB signal transmitting device 400, and is used for measuring the real-time conveying speed of the object to be measured, converting the real-time conveying speed of the object to be measured into an electric signal and transmitting the electric signal to the NB signal transmitting device 400;
the NB signal transmitting device 400 is further configured to receive the electrical signal transmitted by the speed measuring device 600, process the electrical signal into a second NB signal in real time, and transmit the second NB signal to the remote fixed terminal 500;
the remote fixed terminal 500 is further configured to receive the second NB signal, read the real-time transmission speed information of the object to be detected in the second NB signal, and calculate the length of the object to be detected according to the real-time transmission speed and the time difference of the object to be detected.
Specifically, the speed measuring device 600 is connected to the automatic conveying device 100, and can measure the conveying speed of the automatic conveying device 100 in real time, i.e., the real-time conveying speed of the object to be measured, and convert the real-time conveying speed of the object to be measured into an electrical signal and transmit the electrical signal to the NB signal transmitting device 400; the NB signal transmitting apparatus 400 processes the electrical signal in real time into a second NB signal and transmits the second NB signal to the remote fixed terminal 500; after receiving the second NB signal, the remote fixed terminal 500 decodes the second NB signal using a decoding program to obtain real-time transmission speed information of the object to be measured, and calculates the length of the object to be measured according to the real-time transmission speed of the object to be measured and the time difference information.
In one embodiment, the speed measurement device 600 is a speed sensor.
In one embodiment, the speed measurement device 600 is powered by an internal dry cell battery.
In the above embodiment, the speed measuring device 600 measures the conveying speed of the automatic conveying device 100 in real time to obtain the real-time conveying speed of the object to be measured, and the length of the object to be measured is calculated by using the real-time conveying speed of the object to be measured and the time difference information. By using the device in the embodiment, when the automatic conveying device 100 cannot convey the object to be measured at a constant speed, the real-time conveying speed of the object to be measured within the time difference range can be accurately known through real-time measurement, and the length of the object is calculated according to the real-time conveying speed and the time difference information, so that the measurement error can be reduced, and the calculation result is more accurate.
In one embodiment, as shown in fig. 2, the article length measuring system includes a first NB signal transmitting device 400 and a second NB signal transmitting device 700, where the first NB signal transmitting device 400 is connected to the scanning signal receiving device 300, receives the on-off information of the scanning signal transmitted by the scanning signal receiving device 300, converts the on-off information of the scanning signal into an NB signal, and transmits the NB signal to the remote fixed terminal 500; the second NB signal transmitting device 700 is connected to the speed measuring device 600, receives the electrical signal transmitted by the speed measuring device 600, processes the electrical signal into a second NB signal in real time, and transmits the second NB signal to the remote fixed terminal 500; the first NB signal includes the real-time transport speed of the item under test.
Specifically, the second NB signal transmitting device 700 is connected to the speed measuring device 600 by wire, and the speed measuring device 600 converts the real-time conveying speed of the object to be measured into an electrical signal and transmits the electrical signal to the second NB signal transmitting device 700; the second NB signal transmitting apparatus 700 processes the electrical signal into a second NB signal in real time and transmits the second NB signal to the remote fixed terminal 500.
In this embodiment, the second NB signal transmission device 700 receives, converts and transmits only the electric signal information transmitted from the speed measurement device 600,
in one embodiment, the scanning signal transmitting device 200, the scanning signal receiving device 300, the NB signal transmitting device 400, and the speed measuring device 600 are provided with mounting clips at the bottom, and are connected with the guide rails of the automatic conveying device 100 by using the clips.
The buckle is used for embedding and connecting one part with another part or integrally locking the structure, and the buckle connection has the greatest characteristic of convenient installation and disassembly and can be realized without tool disassembly.
Specifically, the mounting clips are provided at the bottoms of the scanning signal transmitting device 200, the scanning signal receiving device 300, the NB signal transmitting device, and the speed measuring device 600, and when the devices need to be mounted, the devices that need to be mounted can be directly mounted on the guide rails of the automatic conveying device 100 by using the clips.
In this embodiment, all the device bottoms that need to be installed on the guide rail of the automatic conveying device 100 are provided with installation buckles, so that when the device is needed to be installed, the device can be directly installed on the guide rail of the automatic conveying device 100 conveniently and quickly, and the installation and the disassembly of all the devices are very convenient.
In one embodiment, an NB signal transmitting device is internally provided with an NB sim card, and when a plurality of devices transmit data information to the NB signal transmitting device at the same time, the NB sim card distinguishes the transmitted data information and determines a transmission device corresponding to the transmitted data information; the transmitted data information comprises on-off information of scanning signals or electric signals transmitted by a speed measuring device.
The SIM card (Subscriber Identity Module) is a Subscriber Identity Module (SIM), and is mainly used for identifying a Subscriber Identity. The sim card for the NB can distinguish data transmitted from a plurality of devices to the NB signal transmitting device and identify a transmitting device corresponding to data information. It can be understood that the sim cards used in the embodiment are all from domestic communication factories, each has its own individual number, and the sim cards are cheap and stable in quality.
Specifically, when a plurality of scanning signal receiving devices or a plurality of speed measuring devices transmit data information to the same NB signal transmitting device, the sim card in the NB signal transmitting device classifies the received ground data information, and determines the transmitting device corresponding to the received scanning signal on-off information or electric signal information.
In one embodiment, the scanning signal is an infrared scanning signal.
Specifically, the scanning signal transmitting device 200 is provided therein with an infrared transmitting module for transmitting infrared rays as a scanning signal, and the scanning signal receiving device 300 is provided therein with an infrared sensor for sensitively sensing a change of the infrared signal. The infrared ray is used as a scanning signal, so that the use cost of the whole system can be reduced to a certain degree.
In the above-described embodiment, by using the sim card for NB to distinguish transmission data information transmitted from a plurality of devices to the NB signal transmission device 400, when there are a plurality of devices performing data transmission to the NB signal transmission device 400, the data can be distinguished and a transmission device corresponding to the data information can be determined. By using the method in this embodiment, the same NB signal transmitting device can receive information transmitted by multiple scanning signal receiving devices or multiple speed measuring devices at the same time, which can greatly improve the working efficiency of the entire system, and use infrared as a scanning signal is helpful to reduce the use cost of the entire system.
In one embodiment, as shown in fig. 3, there is provided an article length measuring method including:
the method can be applied to the system of fig. 1, in which the automatic conveying device 100 is used to convey an object to be tested, and the scanning signal transmitting device 200 and the scanning signal receiving device 300 are respectively disposed at two sides of the guide rail of the automatic conveying device opposite to each other.
Specifically, an article to be detected is placed on the automatic conveying device to be conveyed, the article to be detected can shield the scanning signal receiving device in the movement process to interrupt the scanning signal receiving, the scanning signal can be received again after the article to be detected completely passes through the scanning signal receiving device, and the on-off information of the scanning signal is obtained according to the condition that the article to be detected causes the scanning signal to be interrupted and the scanning signal is received again in the conveying process.
wherein, NB signal transmitting apparatus 400 is connected to scanning signal receiving apparatus 300, and remote fixed terminal 500 can be placed in any area of the factory building.
Specifically, the NB signal transmitting device converts the scan signal on-off information transmitted by the scan signal receiving device into the first NB signal in real time after receiving the scan signal on-off information, and transmits the first NB signal to the remote fixed terminal.
And step 206, after the remote fixed terminal receives the first NB signal, acquiring the time difference between the interruption of the scanning signal and the re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculating the length of the object to be measured according to the time difference.
Specifically, after receiving the first NB signal, the remote fixed terminal decodes the first NB signal to obtain scan signal on-off information, obtains a time difference between when the scan signal is interrupted and when the scan signal is received again according to the scan signal on-off information, and calculates the length of the object to be measured according to the time difference and the constant speed set by the automatic conveying device.
In this embodiment, the on-off information of the scanning signal is obtained according to the condition that the scanning signal is interrupted and received again in the conveying process of the object to be detected, the on-off information of the scanning signal is converted into the first NB signal and is sent to the remote fixed terminal, and the remote fixed terminal calculates the length of the object to be detected according to the time difference between the interruption of the scanning signal and the re-reception of the scanning signal, which is obtained from the on-off information of the scanning signal. When the method in the embodiment is used for measuring the length of the article, when the measured data is more, the length of the article to be measured can be obtained through remote calculation and recorded automatically according to the time difference when the article to be measured shields the scanning signal and the conveying speed of the automatic conveying device, so that the accuracy of the measured data is greatly improved, and the working efficiency is improved. Meanwhile, the NB signal is used for signal transmission, so that the transmission quality is more stable and the transmission speed is faster.
In one embodiment, the article length measuring method further comprises: acquiring real-time transmission speed information of the automatic transmission device, wherein the real-time transmission speed information is the real-time transmission speed information of the object to be detected; converting the real-time transmission speed information of the object to be detected into a second NB signal and then sending the second NB signal to the remote fixed terminal; and after receiving the real-time transmission speed information of the object to be detected, the remote fixed terminal calculates the length of the object to be detected according to the real-time transmission speed and the time difference of the object to be detected.
Specifically, when the automatic conveying device does not adopt the constant-speed conveying speed to convey the object to be detected, the speed measuring device is used for obtaining the real-time conveying speed information of the automatic conveying device in conveying the object to be detected, so that the real-time conveying speed information of the object to be detected is obtained, the real-time conveying speed information of the object to be detected is converted into a second NB signal through the NB signal transmitting device in real time, the second NB signal is sent to the remote fixed terminal, the remote fixed terminal receives the second NB signal and decodes the second NB signal to obtain the real-time conveying speed information of the object to be detected, and the length of the object to be detected is calculated according to the real-time conveying speed and the time difference of the object to be detected.
In this embodiment, the real-time transmission speed of the object to be measured is obtained by obtaining the real-time transmission speed of the automatic transmission device, and the length of the object to be measured is calculated by using the real-time transmission speed of the object to be measured and the time difference information. By using the method of the embodiment, when the automatic conveying device cannot convey the object to be measured at a constant speed, the real-time conveying speed of the object to be measured within the time difference range can be accurately known through real-time measurement, the length of the object is calculated according to the real-time conveying speed and the time difference information, the measurement error can be reduced, and the calculation result is more accurate.
In one embodiment, the acquiring the on/off information of the scanning signal in step 202 includes:
acquiring first information generated when the scanning signal receiving device is shielded by the object to be detected so that the scanning signal is interrupted and second information generated when the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device; wherein the first information comprises a first time and the second information comprises a second time;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the first time and the second time.
Specifically, an article to be detected is placed on an automatic conveying device for conveying, the article to be detected shields a scanning signal receiving device, so that first information can be generated when a scanning signal is interrupted, and the first information comprises time corresponding to the moment of interruption of the scanning signal, namely the first time; after the article to be detected completely passes through the scanning signal receiving device, second information can be generated when the scanning signal is received again, and the second information comprises the time corresponding to the moment when the scanning signal is received again; the scanning signal receiving device transmits the on-off information of the scanning signals including the first time and the second time to the NB signal transmitting device, and the NB signal transmitting device converts the information data into NB signals in real time and transmits the NB signals to the remote fixed terminal. And the remote fixed terminal calculates the length of the object to be measured according to the time difference between the first time and the second time.
In the embodiment, the first time and the second time are recorded in the on-off information of the scanning signal and are converted into the first NB signal to be sent to the remote fixed terminal, the remote fixed terminal calculates the length of the article according to the time difference between the first time and the second time, the length of the article can be measured more automatically, and the accuracy of measured data is improved.
In one embodiment, the acquiring the on/off information of the scanning signal in step 202 includes:
acquiring first information generated when the scanning signal receiving device is shielded by the object to be detected so that the scanning signal is interrupted and second information generated when the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device; wherein the first information comprises a first time and the second information comprises a second time;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the received first information and the received second information.
Specifically, an article to be detected is placed on the automatic conveying device for conveying, the article to be detected shields the scanning signal receiving device, so that first information can be generated when a scanning signal is interrupted, and second information can be generated when the scanning signal is received again after the article to be detected completely passes through the scanning signal receiving device; the scanning signal receiving device respectively transmits the first information and the second information to the NB signal transmitting device, the NB signal transmitting device converts the first information and the second information into first NB signals in real time and transmits the first NB signals to the remote fixed terminal, and the remote fixed terminal calculates the length of the object to be measured according to the time difference of the received first information and the received second information.
In this embodiment, after the object to be measured blocks the scanning signal receiving device, so that the first information generated when the scanning signal is interrupted and the object to be measured completely pass through the scanning signal receiving device, the second information generated when the scanning signal is re-received is respectively converted into the first NB signal by the NB signal transmitting device and transmitted to the remote fixing terminal, and the remote fixing terminal calculates the length of the object to be measured according to the time difference between the received first information and the received second information, so that the length of the object to be measured can be measured more automatically, and the accuracy of the measured data is improved.
It should be understood that, although the steps in the flowcharts related to the above embodiments are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in each flowchart related to the above embodiments may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
Claims (10)
1. An article length measuring system, comprising:
the automatic conveying device is used for conveying the object to be detected;
the scanning signal transmitting device is arranged at one side of the automatic conveying device and is used for transmitting scanning signals;
the scanning signal receiving device is arranged on the other side of the automatic conveying device, is arranged opposite to the scanning signal transmitting device and is used for receiving the scanning signals transmitted by the scanning signal transmitting device; the object to be detected is transmitted on the automatic transmission device, and on-off information of the scanning signal is obtained based on the condition that the scanning signal is interrupted and the scanning signal is received again in the transmission process of the object to be detected; the object to be detected shields the scanning signal receiving device to interrupt the scanning signal, and the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device; the scanning signal receiving device transmits the on-off information of the scanning signal to an NB signal transmitting device;
the NB signal transmitting device is connected with the scanning signal receiving device and used for receiving the on-off information of the scanning signal, processing the on-off information of the scanning signal into a first NB signal in real time and transmitting the first NB signal to the remote fixed terminal;
and the remote fixed terminal is used for receiving the first NB signal, acquiring the time difference between the interruption of the scanning signal and the re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculating the length of the object to be detected according to the time difference.
2. An article length measuring system according to claim 1, wherein said scanning signal on-off information comprises: when the object to be detected shields the scanning signal receiving device, first information is generated when the scanning signal is interrupted, and after the object to be detected completely passes through the scanning signal receiving device, second information is generated when the scanning signal is received again; wherein the first information comprises a first time and the second information comprises a second time;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the first time and the second time.
3. An article length measuring system according to claim 1, wherein said scanning signal on-off information comprises: when the object to be detected shields the scanning signal receiving device, first information is generated when the scanning signal is interrupted, and after the object to be detected completely passes through the scanning signal receiving device, second information is generated when the scanning signal is received again;
and the remote fixed terminal calculates the length of the object to be measured according to the time difference between the received first information and the received second information.
4. An article length measuring system according to any one of claims 1-3, further comprising:
the speed measuring device is respectively connected with the automatic conveying device and the NB signal transmitting device and is used for measuring the real-time conveying speed of the object to be detected, converting the real-time conveying speed of the object to be detected into an electric signal and transmitting the electric signal to the NB signal transmitting device;
the NB signal transmitting device is also used for receiving the electric signal transmitted by the speed measuring device, processing the electric signal into a second NB signal in real time and transmitting the second NB signal to the remote fixed terminal;
the remote fixed terminal is further used for receiving the second NB signal, reading the real-time transmission speed information of the object to be detected in the second NB signal, and calculating the length of the object to be detected according to the real-time transmission speed of the object to be detected and the time difference.
5. An article length measuring system according to claim 4, wherein the speed measuring device is a speed sensor.
6. The article length measuring system according to claim 5, wherein the scanning signal emitting device, the scanning signal receiving device, the NB signal emitting device and the speed measuring device are provided with mounting buckles at the bottoms thereof, and are connected with the guide rail of the automatic conveying device by adopting buckle mounting.
7. The article length measuring system according to claim 5, wherein a sim card for NB is provided inside the NB signal transmitting device, and when a plurality of devices transmit data information to the NB signal transmitting device at the same time, the sim card for NB distinguishes the transmitted data information and determines the transmitting device corresponding to the transmitted data information; the transmitted data information comprises on-off information of the scanning signals or electric signals transmitted by the speed measuring device.
8. An article length measuring system according to claim 7, wherein the scanning signal is an infrared scanning signal.
9. A method of measuring the length of an article, the method comprising:
when an article to be detected is conveyed on an automatic conveying device, acquiring on-off information of a scanning signal based on the condition that the scanning signal of the article to be detected is interrupted and the scanning signal is received again in the conveying process; the object to be detected shields the scanning signal receiving device to interrupt the scanning signal, and the scanning signal is received again after the object to be detected completely passes through the scanning signal receiving device;
converting the on-off information of the scanning signal into a first NB signal in real time and sending the first NB signal to a remote fixed terminal;
and after the remote fixed terminal receives the first NB signal, acquiring the time difference between the interruption of the scanning signal and the re-reception of the scanning signal based on the on-off information of the scanning signal transmitted by the first NB signal, and calculating the length of the object to be measured according to the time difference.
10. The article length measuring method of claim 9, further comprising:
acquiring real-time transmission speed information of an automatic transmission device, wherein the real-time transmission speed information is the real-time transmission speed information of the object to be detected;
converting the real-time transmission speed information of the object to be detected into a second NB signal and then sending the second NB signal to a remote fixed terminal;
and after receiving the real-time transmission speed information of the object to be detected, the remote fixed terminal calculates the length of the object to be detected according to the real-time transmission speed of the object to be detected and the time difference.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680822U (en) * | 2009-11-27 | 2010-12-22 | 燕山大学 | Online detection system for measuring length and diameter of moving object |
| US20190242703A1 (en) * | 2014-11-10 | 2019-08-08 | Invensense, Inc. | Trajectory estimation system |
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2021
- 2021-11-05 CN CN202111308776.6A patent/CN113916173A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680822U (en) * | 2009-11-27 | 2010-12-22 | 燕山大学 | Online detection system for measuring length and diameter of moving object |
| US20190242703A1 (en) * | 2014-11-10 | 2019-08-08 | Invensense, Inc. | Trajectory estimation system |
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Application publication date: 20220111 |