CN110557300A - system and method for detecting whether NB-IoT module is qualified or not in low power consumption - Google Patents
system and method for detecting whether NB-IoT module is qualified or not in low power consumption Download PDFInfo
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- CN110557300A CN110557300A CN201910729407.0A CN201910729407A CN110557300A CN 110557300 A CN110557300 A CN 110557300A CN 201910729407 A CN201910729407 A CN 201910729407A CN 110557300 A CN110557300 A CN 110557300A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A system and method of detecting eligibility for NB-IoT module low power consumption, the system comprising: a detected NB-IoT module; a power source; the digital multimeter is connected between the detected NB-IoT module and the power supply and is used for detecting the current input by the detected NB-IoT module from the power supply; the USB-to-serial port board is connected with the detected NB-IoT module and is used for communicating with the detected NB-IoT module; the intelligent terminal is connected with the digital multimeter and is connected with the USB-to-serial port plate; the intelligent terminal is used for controlling the detected NB-IoT module through the USB-to-serial port board, and the intelligent terminal is used for acquiring current data of the digital multimeter. The system can save detection time and improve the accuracy of detection results.
Description
Technical Field
The invention relates to the field of communication module detection, in particular to a system and a method for detecting whether NB-IoT module low power consumption is qualified.
Background
LPWAN (Low-Power Wide-Area Network, Low Power consumption Wide Area Network) is an important component in the application of internet of things. NB-IoT (Narrow Band Internet of Things) is an important technology in LPWAN.
NB-IoT is mainly used in products powered by batteries, and is therefore very sensitive to power consumption. Therefore, in the production process, the NB-IoT module needs to be subjected to low power consumption testing, so that the reliability of the NB-IoT module is ensured, and power consumption abnormality caused by problems such as mispasting, missing pasting, insufficient soldering and the like is prevented, that is, whether the corresponding NB-IoT module is qualified or not in a low power consumption state (whether the low power consumption performance requirement is met or not) is detected.
Disclosure of Invention
The invention provides a system and a method for detecting whether NB-IoT module is qualified or not in low power consumption, so as to better detect the low power consumption (performance) of the NB-IoT module in a low power consumption mode.
In order to solve the above problem, the present invention provides a system for detecting whether NB-IoT module is qualified in low power consumption, including: a detected NB-IoT module; a power supply to power the detected NB-IoT module; the digital multimeter is connected between the detected NB-IoT module and the power supply and is used for detecting the current input by the detected NB-IoT module from the power supply; the USB-to-serial port plate is connected with the detected NB-IoT module and is used for communicating with the detected NB-IoT module; the intelligent terminal is connected with the digital multimeter and is connected with the USB-to-serial port plate; the intelligent terminal is used for controlling the detected NB-IoT module through the USB to serial port board, and the intelligent terminal is used for acquiring current data of the digital multimeter.
Optionally, the system further includes a SIM card, where the SIM card is used for detecting a SIM card interface in the detected NB-IoT module and detecting a network residence.
optionally, the system further includes a server, and the intelligent terminal is in communication with the server.
In order to solve the above problem, the present invention further provides a method for detecting whether the NB-IoT module is qualified in low power consumption, including: powering the detected NB-IoT module with a power supply; detecting the current input by the detected NB-IoT module from the power supply by adopting a digital multimeter; sending a control signal to the detected NB-IoT module by adopting an intelligent terminal, wherein the control signal comprises a trigger control signal for enabling the detected NB-IoT module to enter a low power consumption mode; acquiring current data detected by the digital multimeter by adopting the intelligent terminal; and the intelligent terminal judges whether the low power consumption of the detected NB-IoT module is qualified or not according to the current data.
Optionally, the method further includes: and the intelligent terminal is connected with the detected NB-IoT module by adopting a USB serial port conversion board, and the intelligent terminal sends the control signal to the detected NB-IoT module through the USB serial port conversion board.
Optionally, the control signal includes: and controlling a serial port of the detected NB-IoT module.
Optionally, the determining, by the intelligent terminal, whether the low power consumption of the detected NB-IoT module is qualified according to the current data includes: the intelligent terminal sets an expected target current value with qualified low power consumption; and the intelligent terminal acquires the low-power consumption current data of the detected NB-IoT modules, and judges whether the low power consumption of the detected NB-IoT modules is qualified or not according to the comparison between the average value of the low-power consumption current data and the expected target current value.
optionally, an intelligent terminal is adopted to send a control signal to the detected NB-IoT module through the USB serial port conversion board, including: the intelligent terminal automatically identifies the international mobile equipment identification code of the detected NB-IoT module; inputting a confirmation identification code to the intelligent terminal; and comparing the input confirmation identification code with the automatically identified international mobile equipment identification code (of the detected NB-IoT module), and when the input confirmation identification code is consistent with the automatically identified international mobile equipment identification code, sending the trigger control signal for enabling the detected NB-IoT module to enter a low power consumption mode by the intelligent terminal.
Optionally, after the intelligent terminal sends the trigger control signal and delays for more than 2s, the intelligent terminal is adopted to obtain the current data detected by the digital multimeter.
optionally, the digital multimeter is adjusted to a microampere gear, and then the intelligent terminal is adopted to acquire the current data detected by the digital multimeter.
In one aspect of the technical scheme, the USB-to-serial port board is additionally arranged, so that the detected NB-IoT module can be controlled by the intelligent terminal, and a hardware basis is provided for realizing corresponding detection directly through the intelligent terminal. By using the system, the process of reading the current readings manually is omitted, and the process of waiting for the overtime of the T3324 timer is not needed, so that the low power consumption (performance) detection of the NB-IoT module in the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the NB-IoT module is favorable for production and manufacturing.
In another aspect of the technical scheme of the invention, the detection process can realize the detection of the detected NB-IoT module by directly matching the intelligent terminal with the digital multimeter through the corresponding control signal and acquiring the corresponding digital current signal, and the method replaces the corresponding manual detection step without waiting for the overtime process of the corresponding T3324 timer, so that the low power consumption (performance) detection of the NB-IoT module under the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the mass production and manufacturing of the NB-IoT module are facilitated.
Drawings
Fig. 1 is a schematic diagram of a system for detecting whether NB-IoT module is qualified for low power consumption in an embodiment;
fig. 2 is a schematic diagram illustrating steps of a method for detecting whether NB-IoT module is qualified for low power consumption in an embodiment;
fig. 3 is a schematic diagram of another system for detecting whether NB-IoT modules are qualified for low power consumption in another embodiment;
fig. 4 is a schematic diagram of another method for detecting whether NB-IoT module is qualified for low power consumption in another embodiment.
Detailed Description
NB-IoT is a standard defined by the 3GPP organization, and the characteristics of NB-IoT modules in a low power mode (PSM) state are critical. The PSM of the NB-IoT module is a technology introduced by 3GPP R12, and the principle thereof is to allow a User Equipment (UE) to turn off a function related to a signal transceiving and Access Stratum (AS) after entering an idle state for a period of time, which is equivalent to partial shutdown, thereby reducing power consumption (energy) consumption of an antenna, radio frequency, signaling processing, and the like. The user equipment does not receive any network paging during the low power consumption mode, and the user equipment is inaccessible at the moment and does not receive data, short messages and calls.
When the NB-IoT module is in the low power mode, the terminal is in the sleep mode, which is close to the power-off state, and power can be saved greatly. In the low power mode, the terminal no longer listens for pages, but the terminal is still registered in the Network, so that a reconnection or Public Data Network (PDN) connection need not be established for Data transmission.
Accordingly, the NB-IoT module has the following different states:
connection state: carrying out data receiving and sending;
In an idle state: a T3324 timer is started, and Radio Resource Control (RRC) is released; in idle state, monitoring paging;
Low power mode (low power state): the T3324 timer times out; start T3412; no page is listened to.
the conditions for the NB-IoT module to enter the low power mode are: the T3324 timer times out. However, the Active time (Active Timer) of the T3324 Timer is an arbitrary time from 0 to 186min, with uncertainty, and in most cases a longer time, such as 10s or 20 s.
The existing detection scheme of the low power consumption mode (low power consumption performance) of the NB-IoT module is characterized in that an ammeter is connected in series with a power supply, a SIM card is inserted into the NB-IoT module, the NB-IoT module is waited to successfully live in a network, and after the NB-IoT module enters the low power consumption mode due to overtime of a T3324 timer, the ammeter number of the ammeter is manually read, and then the corresponding ammeter number is compared with the design target low power consumption current value of the NB-IoT module product, so that whether the low power consumption (performance) of the NB-IoT module is qualified or not in the low power consumption mode is judged.
the disadvantages of this prior art detection scheme are:
The time consumption is long, since the NB-IoT module to be detected can enter the low power consumption mode only by waiting for the T3324 timer to time out, and the time consumption is long because the T3324 timer often needs a long time to time out;
Uncertainty exists, the time of a T3324 timer configured at the network base station side cannot be predicted, and the time when the low power consumption mode is entered cannot be judged;
The accuracy is poor, makes mistakes easily (the mode personnel of artifical reading are also tired easily) to the mode of artifical reading, and extravagant manpower is unfavorable for manufacturing.
therefore, the present invention provides a new system and method for detecting whether NB-IoT module is qualified with low power consumption, so as to solve the above-mentioned disadvantages.
For a more clear presentation, the invention is described in detail below with reference to the accompanying drawings.
An embodiment of the present invention provides a system for detecting whether NB-IoT modules are qualified in low power consumption, please refer to fig. 1.
as in fig. 1, the system comprises: a detected NB-IoT module; a power supply for powering the detected NB-IoT module; the digital multimeter is connected between the detected NB-IoT module and the power supply and is used for detecting the current input by the detected NB-IoT module from the power supply; the USB-to-serial port board is connected with the detected NB-IoT module and is used for communicating with the detected NB-IoT module; fig. 1 shows that, in this embodiment, the intelligent terminal is a computer, the computer is connected with a digital multimeter, and the computer is connected with a USB serial port conversion board; the computer is used for controlling the detected NB-IoT module through the USB to serial port board, and the computer is used for acquiring current data of the digital multimeter.
In fig. 1, the NB-IoT module to be detected is connected to the USB to serial board through a UART (Universal Asynchronous Receiver Transmitter) serial port and a GPIO (General-purpose input/output) port. At the moment, the serial port communication between the computer and the detected NB-IoT module is realized, and a corresponding detection system is formed.
The system provided by the embodiment enables the detected NB-IoT module to be controlled through the intelligent terminal by adding the USB-to-serial port board, and accordingly provides a hardware basis for realizing corresponding detection through the intelligent terminal directly. By using the system, the process of reading the current readings manually is omitted, and the process of waiting for the overtime of the T3324 timer is not needed, so that the low power consumption (performance) detection of the NB-IoT module in the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the mass production and the manufacture of the NB-IoT module are facilitated.
Meanwhile, it should be noted that the system provided by this embodiment may not even need a corresponding SIM card, so that the system structure is simple, and in some cases, the time for detecting by using the SIM card may be saved, so that the detection is more efficient.
An embodiment of the present invention further provides a method for detecting whether the NB-IoT module is qualified in low power consumption, please refer to fig. 2.
as shown in fig. 2, the method includes:
step S10, connecting the corresponding detection system and starting;
Step S11, power is supplied to the detected NB-IoT module by adopting a power supply;
Step S12, detecting the current input by the detected NB-IoT module from the power supply by using a digital multimeter (the input current is the real-time power consumption current of the detected NB-IoT module);
Step S13, sending a control signal to the detected NB-IoT module by using an intelligent terminal (also implemented by using a computer in this embodiment), where the control signal includes a trigger control signal for making the detected NB-IoT module enter a low power consumption mode (so that the detected NB-IoT module enters the low power consumption mode);
Step S14, acquiring current data detected by the digital multimeter by adopting the intelligent terminal;
Step S15, the intelligent terminal judges whether the low power consumption of the detected NB-IoT module is qualified or not according to the current data (the current data in the low power consumption mode);
After the step S15, if it is determined that the NB-IoT module to be detected is qualified due to low power consumption, then step S16 is performed, i.e., the detection result is displayed as qualified due to low power consumption and the process is ended; if the detected NB-IoT module is determined to be unqualified in low power consumption, step S17 is performed, i.e., the detection result is displayed to be unqualified in low power consumption and the process is ended.
according to the method provided by the embodiment, the detection process can be realized by directly passing through the corresponding control signal and acquiring the corresponding digital current signal by depending on the matching of the intelligent terminal and the digital multimeter, the method replaces the corresponding manual detection step, and the overtime process of the corresponding T3324 timer is not required to be waited, so that the low power consumption (performance) detection of the NB-IoT module in the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the mass production and manufacturing of the NB-IoT module are facilitated.
Another embodiment of the present invention provides another system for detecting whether NB-IoT modules are qualified for low power consumption, please refer to fig. 3.
as shown in fig. 3, the system includes: a detected NB-IoT module; the voltage-stabilized power supply is used for supplying power to the detected NB-IoT module; the programmable digital multimeter is connected between the detected NB-IoT module and the stabilized voltage power supply and is used for detecting the current input by the detected NB-IoT module from the stabilized voltage power supply in real time; the USB-to-serial port board is connected with the detected NB-IoT module and is used for communicating with the detected NB-IoT module; an intelligent terminal, fig. 3 shows that, in this embodiment, the intelligent terminal is a Personal Computer (PC), the PC is connected with a programmable digital multimeter, and the PC is connected with a USB serial port board; the personal computer is used for controlling the detected NB-IoT module through the USB-to-serial port board, and is used for acquiring current data of the programmable digital multimeter.
the intelligent terminal is used for communicating and controlling the detected NB-IoT module, configuring and controlling the programmable digital multimeter to perform sampling work, and is also used for detecting and judging whether the current value of the detected NB-IoT module is normal under the low power consumption mode, namely judging whether the detected NB-IoT module is qualified in low power consumption.
In some embodiments, the regulated power supply may further be a regulated dc power supply, such as a 4V regulated dc power supply, which can be used to better detect the corresponding detected NB-IoT module.
In some embodiments, the programmable digital multimeter can further be a high precision programmable digital multimeter. The high-precision programmable digital multimeter is connected in series between the voltage-stabilizing direct-current power supply and the detected NB-IoT module, is used for sampling current, and can sample microampere-level current.
In other embodiments, the intelligent terminal may also be a smart phone or an industrial personal computer.
In fig. 3, the detected NB-IoT module is shown to be connected to the USB serial-to-serial board through the UART serial port and the GPIO port. At the moment, the serial port communication between the computer and the detected NB-IoT module is realized.
The USB-to-serial port board is used for communication between the PC and the NB-IoT module, and only needs to be capable of switching corresponding UART serial ports and GPIO ports during design.
The system provided by the embodiment enables the detected NB-IoT module to be controlled through the intelligent terminal by adding the USB-to-serial port board, and accordingly provides a hardware basis for realizing corresponding detection through the intelligent terminal directly. By using the system, the process of manually reading the current readings can be omitted, so that the low power consumption (performance) detection of the NB-IoT module in the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the mass production and manufacturing of the NB-IoT module are facilitated.
As shown in fig. 3, in this embodiment, the system further includes a SIM card, where the SIM card is used for detecting a SIM card interface in the detected NB-IoT module and detecting a network residence. Namely, the system is added with the SIM card for detecting the SIM card interface and the network residing function of the detected NB-IoT module. Meanwhile, it should be noted that, although the system provided in this embodiment adds the SIM card (this SIM card is used for detecting performance in other non-low power consumption aspects), in some other embodiments, when only the low power consumption performance needs to be detected, the system of the present invention may still not need the corresponding SIM card, so that the system of the present invention may save more time (save the time for detecting by using the SIM card) in some cases (only the case of detecting low power consumption), and therefore, the corresponding system is more efficient for detecting low power consumption.
as shown in fig. 3, in this embodiment, the system further includes a server, and a personal computer (intelligent terminal) is in communication with the server (corresponding connection is shown by a dotted line in fig. 3). The personal computer is set to be in communication connection with the server, the server can be a corresponding production manufacturing system, at the moment, the detection result can be stored in the server, and at the moment, the detection result is updated to the corresponding production manufacturing system. Therefore, the method is beneficial to quickly feeding back the corresponding detection result to the production manufacturing system, so that the production line can be correspondingly adjusted according to the result, and the corresponding detection result can be shared in time.
the system provided by the embodiment can detect whether the low power consumption of the corresponding detected NB-IoT module is qualified or not without manually intervening and judging the readings in the low power consumption detection process of the corresponding NB-IoT module, is simple and convenient to operate, can be further expanded, is integrated into a production and manufacturing system, greatly improves the generation efficiency of products, and ensures the high reliability of the products. Moreover, the system can realize automatic detection and is convenient and fast to operate.
Another embodiment of the present invention further provides another method for detecting whether the NB-IoT module is qualified for low power consumption, please refer to fig. 4.
The method provided by the embodiment can be realized by adopting the system provided by the embodiment, and can be matched with the composition of the system to form a voltage-stabilizing direct-current power supply, a programmable digital multimeter, a detected NB-IoT module, a USB switching serial port plate, a personal computer and other systems which are connected in a physical connection mode, then the voltage-stabilizing power supply is turned on to supply power to the detected NB-IoT module, and the high-precision programmable digital multimeter is turned on.
As shown in fig. 4, the method includes the following steps.
In step S20, the corresponding detection system is connected (as described above) and start-up is initiated.
In this embodiment, a USB serial port conversion board is connected to the detected NB-IoT module, and the intelligent terminal sends a control signal to the detected NB-IoT module through the USB serial port conversion board.
Therefore, the present embodiment continues to step S21 to detect whether the serial port initialization of the USB-to-serial port board is normal. If the serial port initialization is normal (Y), the step S22 is carried out; if the serial port initialization is not normal (N), the process proceeds to step S31, i.e., the step of feedback detection fails.
In this embodiment, a programmable digital multimeter is used to detect the current input by the detected NB-IoT module from the regulated power supply in real time (the input current is the real-time power consumption current of the detected NB-IoT module). In order to realize "detecting the current input by the detected NB-IoT module from the regulated power supply in real time by using the programmable digital multimeter", in this embodiment, the content of step S22 is to detect whether the initialization of the programmable digital multimeter is normal. If the programmable digital multimeter is detected to be initialized normally (Y), the step S23 is entered; if the programmable multimeter initialization is detected to be abnormal (N), then step S31 is entered, i.e., the step of feedback detection fails.
It should be noted that, when the programmable digital multimeter is initialized to be normal, the "measuring range of sampling of the programmable digital multimeter during subsequent use" may be configured at this stage, and the corresponding sampling times may also be preset at this stage.
In this embodiment, an intelligent terminal (also implemented by a computer in this embodiment) is used to send a control signal to the detected NB-IoT module.
Referring back to step S20 and step S21, in between, in this embodiment, corresponding control signal transmission may also be performed, where the control signal at this time may include: and controlling a serial port of the detected NB-IoT module. At this time, the baud rate of the smart terminal and the detected NB-IoT module can also be configured so that the two can communicate. In addition, the expected target current value that is qualified for low power consumption (or the expected target current value for low power consumption) mentioned later in this embodiment may also be set at this stage.
The intelligent terminal sends more control signal commands to the detected NB-IoT module, and in step S23, the intelligent terminal sends at (attention) commands to the detected NB-IoT module through the USB serial port board. In addition, step S23 itself determines whether the detected NB-IoT module receives the AT command. If the detected NB-IoT module receives the AT command (Y) and the detected NB-IoT module responds "OK", then step S24 is entered; on the contrary, if the detected NB-IoT module does not receive the AT command (N), the embodiment takes the step of resending the AT command until the detected NB-IoT module receives the corresponding AT command. However, although not shown in fig. 4, when the retransmission exceeds a certain number of times, the present embodiment may stop the corresponding detection, that is, for example, the process may proceed to step S31, and the feedback detection may fail.
Step S24 is one of the aspects of sending a control signal to the detected NB-IoT module by using the smart terminal through the USB serial port, and step S24 specifically includes: and the intelligent terminal automatically identifies the International mobile equipment Identity of the detected NB-IoT module (reads the IMEI of the detected NB-IoT module, and the International Mobile Equipment Identity).
Then, the process proceeds to step S25, where a confirmation identification code is input to the smart terminal. This step S25 compares the entered (inspector entered) confirmation identity with the automatically identified international mobile equipment identity (of the inspected NB-IoT module): when the two are consistent (Y) (identification code is confirmed and international mobile equipment identification code), the intelligent terminal sends the trigger control signal for making the detected NB-IoT module enter the low power consumption mode, that is, step S26 is performed; if they do not match (N), the process proceeds to step S31, where the feedback detection fails. That is, in order to prevent the correctness of the test result from being affected by the object error, the computer compares whether the read IMEI is consistent with the input IMEI, and if not, an error is prompted and the detection is ended.
as can be seen from the above, the international mobile equipment identity is used as the unique identity of the detected NB-IoT module, so that the final detection result is ensured to correspond to the modules one to one. In addition, in this embodiment, after the computer inputs the correct international mobile equipment identity, the computer sends an AT command every 500ms to wait for the response "OK" of the corresponding NB-IoT module to be tested, so as to perform the next operation. After receiving the 'OK' response of the module, the computer and the corresponding module start to communicate normally.
Step S26 is to send a corresponding command to trigger the detected NB-IoT module to enter the low power mode, or to send a trigger control signal to trigger the detected NB-IoT module to enter the low power mode. This is an important step. However, in this embodiment, the collection of the corresponding current signal by the corresponding intelligent terminal is not started directly after that, but the other two steps, i.e., step S27 and step S28, are performed first.
And step S27, after the intelligent terminal sends the trigger control signal and delays for more than 2S, the intelligent terminal is adopted to obtain the current data detected by the digital multimeter. The time delay is more than 2s (for example, the time delay may be 2s or 3s), so as to ensure that the system is in a stable state, and ensure that the system enters a stable low power consumption mode, thereby ensuring that the detection result is more accurate.
and step S28, adjusting the digital multimeter to a microampere level, and acquiring current data detected by the digital multimeter by using the intelligent terminal. The digital multimeter can be adjusted to the microampere range by sending an instruction to the digital multimeter by using an intelligent terminal (a computer) so as to configure the digital multimeter to switch the measuring range to the microampere range. The power consumption of the detected NB-IoT module in the low power consumption mode is microampere (if the digital multimeter is in a gear with too large range, the precision of the detection result is affected, a large error is introduced, the detection result is inaccurate, even the erroneous judgment is caused, and the like).
In some embodiments, the order of step S27 and step S28 may be reversed.
After the step S28, the process proceeds to a step S29, the intelligent terminal continuously acquires a plurality of low power consumption current data (i.e. corresponding current data), then calculates an average value of the data, and when calculating the average value, the maximum value and the minimum value in the original data may be removed to reduce the error.
For step S28, specifically, a command for reading the current may be sent by the computer to the digital multimeter, so that the computer reads the sampled current values 50 times (i.e., corresponding current data, specifically, corresponding current values may be read once every 10 ms), performs sorting, and after removing the maximum value and the minimum value, calculates to obtain an average value of the remaining current values 48 times.
Step 30, setting an expected target current value qualified for low power consumption at the intelligent terminal (the setting can be set earlier), and then comparing the average value with the expected target current value to judge whether the low power consumption of the detected NB-IoT module is qualified or not. If the average value is less than or equal to the expected target current value, the corresponding detection is successful, and the detection result is that the detected NB-IoT module is a qualified product with low power consumption; if the average value is larger than the expected target current value, the corresponding detection is successful, but the detected NB-IoT module is a low-power-consumption unqualified product.
in step 30, if the comparison cannot be performed, the process may still proceed to step S31, i.e., the feedback detection fails.
As can be seen from the above, the steps 29 and 30 embody the following processes: the intelligent terminal sets an expected target current value with qualified low power consumption; and the intelligent terminal acquires a plurality of low-power current data, and judges whether the low power consumption of the detected NB-IoT module is qualified or not according to the comparison between the average value of the low-power current data and the expected target current value.
Step S32 is a successful test step, in which if it is determined that the NB-IoT module to be tested is qualified due to low power consumption, the test result is displayed as qualified due to low power consumption, and the result can be fed back to the corresponding server; and if the detected NB-IoT module is detected to be unqualified in low power consumption, displaying that the detection result is unqualified in low power consumption, and feeding back the detection result to the corresponding server. Meanwhile, as can be seen from the foregoing, in the corresponding detection process, the detection of the SIM card interface and the detection of the network residence can also be simultaneously achieved.
As can be seen from the above, in this embodiment, an intelligent terminal is used to obtain current data detected by a programmable digital multimeter, and then the intelligent terminal determines whether the low power consumption of the detected NB-IoT module is qualified according to the current data. Wherein, step S29, step 30 and step 32 all belong to: and the intelligent terminal judges whether the low power consumption of the detected NB-IoT module is qualified or not according to the current data.
According to the method provided by the embodiment, the detection process can be realized by directly passing through the corresponding control signal and acquiring the corresponding digital current signal by depending on the matching of the intelligent terminal and the programmable digital multimeter, and the method replaces the corresponding manual detection step, so that the low power consumption (performance) detection of the NB-IoT module in the low power consumption mode is more efficient and faster, the detection time is saved, the detection uncertainty is eliminated, the accuracy of the detection result is improved, and the mass production and manufacturing of the NB-IoT module are facilitated.
The method provided by the embodiment can be directly realized by using the corresponding system. Specifically, the intelligent terminal is used for controlling the detected NB-IoT module to enter the low power consumption mode without waiting for the T3324 timer to time out as in the prior art. Meanwhile, the current value on the digital multimeter is read through the intelligent terminal, and the read current value is compared with an expected set target value so as to detect whether the detected NB-IoT module is a low-power consumption qualified product. The method has the following advantages:
Detection time is saved because there is no need to wait for the timeout of the corresponding T3324 timer (the detected NB-IoT module can enter the low power mode);
The method can automatically judge whether the product is qualified or not, does not need manual judgment by reading current readings, realizes automatic production detection, saves labor and cost;
The method can feed back the detection result to the server, and the server belongs to a part of a production manufacturing system, so that the detection result is fused into the production manufacturing system, defective products are managed and controlled, the phenomenon that the unqualified products are judged as qualified products by mistake due to manual factors is reduced, the phenomenon that products which are not detected are judged as the qualified products by mistake is reduced, and the accuracy of the detection result is further ensured.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A system for detecting qualification of NB-IoT module for low power consumption, comprising:
A detected NB-IoT module;
A power supply to power the detected NB-IoT module;
The digital multimeter is connected between the detected NB-IoT module and the power supply and is used for detecting the current input by the detected NB-IoT module from the power supply;
The USB-to-serial port plate is connected with the detected NB-IoT module and is used for communicating with the detected NB-IoT module;
The intelligent terminal is connected with the digital multimeter and is connected with the USB-to-serial port plate; the intelligent terminal is used for controlling the detected NB-IoT module through the USB to serial port board, and the intelligent terminal is used for acquiring current data of the digital multimeter.
2. The system for detecting qualification of NB-IoT module in low power consumption according to claim 1, further comprising a SIM card for detection of SIM card interface and detection of network residence in the detected NB-IoT module.
3. The system of detecting eligibility for NB-IoT module low power consumption of claim 1, further comprising a server with which the smart terminal communicates.
4. A method for detecting whether NB-IoT module low power consumption is qualified or not is characterized by comprising the following steps:
Powering the detected NB-IoT module with a power supply;
Detecting the current input by the detected NB-IoT module from the power supply by adopting a digital multimeter;
Sending a control signal to the detected NB-IoT module by adopting an intelligent terminal, wherein the control signal comprises a trigger control signal for enabling the detected NB-IoT module to enter a low power consumption mode;
Acquiring current data detected by the digital multimeter by adopting the intelligent terminal;
and the intelligent terminal judges whether the low power consumption of the detected NB-IoT module is qualified or not according to the current data.
5. the method of detecting eligibility for NB-IoT module low power consumption of claim 4, further comprising: and the intelligent terminal is connected with the detected NB-IoT module by adopting a USB serial port conversion board, and the intelligent terminal sends the control signal to the detected NB-IoT module through the USB serial port conversion board.
6. the method of detecting eligibility for NB-IoT module low power consumption of claim 4, wherein the control signal comprises: and controlling a serial port of the detected NB-IoT module.
7. The method for detecting the qualification of the NB-IoT module in the low power consumption as claimed in claim 4, wherein the step of the intelligent terminal determining the qualification of the NB-IoT module in the low power consumption according to the current data comprises:
The intelligent terminal sets an expected target current value with qualified low power consumption; and the intelligent terminal acquires the low-power consumption current data of the detected NB-IoT modules, and judges whether the low power consumption of the detected NB-IoT modules is qualified or not according to the comparison between the average value of the low-power consumption current data and the expected target current value.
8. The method of claim 7, wherein sending a control signal to the NB-IoT module to be detected through the USB to serial interface board using a smart terminal comprises:
the intelligent terminal automatically identifies the international mobile equipment identification code of the detected NB-IoT module; inputting a confirmation identification code to the intelligent terminal; and comparing the input confirmation identification code with the automatically identified international mobile equipment identification code, and when the input confirmation identification code is consistent with the automatically identified international mobile equipment identification code, the intelligent terminal sends the trigger control signal for enabling the detected NB-IoT module to enter a low power consumption mode.
9. the method for detecting the qualification of the NB-IoT module in low power consumption as claimed in claim 8, wherein after the intelligent terminal sends the trigger control signal and delays for more than 2s, the intelligent terminal is adopted to obtain the current data detected by the digital multimeter.
10. the method for detecting qualification of NB-IoT module low power consumption of claim 9, wherein the digital multimeter is adjusted to a microampere level, and the current data detected by the digital multimeter is obtained by using the intelligent terminal.
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