CN111397748A

CN111397748A - Wooden package heat treatment temperature recorder

Info

Publication number: CN111397748A
Application number: CN202010335032.2A
Authority: CN
Inventors: 向文军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-07-10

Abstract

The invention discloses a temperature recorder for heat treatment of wooden packages, which comprises a processing unit arranged in a shell, and a switch control unit, a multi-path temperature acquisition unit, a multi-path display unit, a communication unit, a clock module, a warning module and a transmission interface which are connected with the processing unit through circuits; the multi-path temperature acquisition unit is connected with the multi-path probe device, and data are displayed on the multi-path display unit; the processing unit uploads the data acquired by the multi-path temperature acquisition unit to an upper computer through the communication unit; the multi-path probe comprises a wood core temperature probe device, an environment temperature probe device and a wet and dry bulb temperature acquisition device; the invention is suitable for heat treatment monitoring in the wood quarantine process, has high acquisition precision, is convenient for workers to know the working details in the heat treatment warehouse through multi-path data display, is beneficial to controlling the temperature control in the wood heat treatment process, well achieves the wood epidemic prevention treatment degree and simultaneously prevents the occurrence of wood cracking caused by excessive treatment; low power consumption and is suitable for industrial popularization and application.

Description

Wooden package heat treatment temperature recorder

Technical Field

The invention relates to the technical field of customs exit wooden package quarantine inspection, in particular to a wooden package heat treatment temperature recorder.

Background

In international trade, all countries implement a mandatory quarantine system on all imported commodity wooden trays in order to protect the plant resources of the countries, and wooden packaging heat treatment is a mandatory measure taken in order to prevent harmful diseases and pests from harming the forest resources of the imported countries. The current regulation standard for the quarantine and pest control method of wooden packaging materials is that International Plant Protection Convention (IPPC) published in 3 months in 2002 issues International Plant quarantine measure standard No. 15 publication of wooden packaging Material management criteria in International Trade (Guidelines for regulating wooden packaging Material in International Trade), which is International standard No. 15, namely International wooden packaging quarantine measure standard. The IPPC mark is used for identifying the wooden package which meets the IPPC standard and indicates that the wooden package is processed by the IPPC quarantine standard. Two methods of quarantine and hazard control for wood packaging materials are specified in this standard, one is a heat treatment method and the other is a methyl bromide fumigation method. Practice proves that the heat treatment method can effectively control fungi, insects and nematodes more than a methyl bromide fumigation method, and the pest control effect is better. Meanwhile, the fumigation treatment has the problems of high operation risk and serious environmental pollution, so the heat treatment method is called as a method which is more easily accepted by various countries at present.

In the above criteria, the wood packaging Heat Treatment (HT) must ensure that the core temperature of the wood reaches at least 56 ℃ for more than 30 minutes; however, in the heat treatment process in the prior art, the general industrial temperature recorder is adopted to monitor the central temperature of the wood, so that the sensing capability of the equipment on the temperature is poor, the monitoring effect is not ideal, and the problems of low working efficiency, incapability of meeting the international standard requirement of heat treatment and the like are caused.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a heat treatment temperature recorder for wooden packages, which is beneficial to improving the monitoring effect on heat treatment.

In order to achieve the purpose, the technical scheme of the invention comprises the following steps:

a temperature recorder for heat treatment of wooden packages comprises a shell, wherein a circuit board is arranged in the shell, and a processing unit, a switch control unit, a multi-path temperature acquisition unit, a multi-path display unit, a communication unit, a clock module, a warning module and a transmission interface are arranged on the circuit board and are in circuit connection with the processing unit; the multi-path temperature acquisition unit is connected with the multi-path probe device and displays data on the multi-path display unit in a one-to-one correspondence manner through the processing unit; the processing unit is also used for uploading the data acquired by the multi-path temperature acquisition unit to an upper computer through a communication unit; wherein the multi-channel probe at least comprises a wood core temperature probe device, an environment temperature probe device and a dry-wet bulb temperature acquisition device.

Further, in the above-mentioned temperature recorder for heat treatment of wooden package, the wooden core temperature probe device includes a wooden core temperature probe and a fixing portion; the wood core temperature probe is used for being inserted into the reference wood placing hole, and the fixing part is used for hermetically fixing the wood core temperature probe inserted into the reference wood in the reference wood placing hole.

Further, among the foretell wooden packing heat treatment temperature recorder, ambient temperature probe device includes ambient temperature probe and probe installing support, and the probe installing support is the ears fixed bolster, including the relative ear that sets up in stationary blade and stationary blade both ends, is equipped with the fixed orifices in the middle part of the stationary blade, and the corresponding position in two ears middle parts is equipped with the through-hole.

Further, in the above-mentioned temperature recorder for wood package heat treatment, the wet and dry bulb temperature collecting device comprises a wet bulb temperature probe, a dry bulb temperature probe and a water tank; wherein the water tank is a rectangular box body, and the top of the box body is provided with a hole.

Further, among the foretell wooden packing heat treatment temperature recorder, multichannel display element includes eight independent display screens and pilot lamp, and eight independent display screens are dry bulb temperature display screen, wet bulb temperature display screen, relative humidity display screen, wooden core temperature display screen, ambient temperature display screen, average moisture content display screen, time to reach standard display screen and process time display screen respectively.

Furthermore, in the above-mentioned wooden package heat treatment temperature recorder, the communication unit includes wireless communication module, access circuit board through the interface with the processing unit is connected for each monitoring data wireless transmission to host computer of receiving processing unit.

The invention also provides a heat treatment monitoring system comprising the wood package heat treatment temperature recorder, and the heat treatment monitoring system further comprises an upper computer and a cloud server, wherein the upper computer of the wood package heat treatment temperature recorder is sequentially in communication connection with the cloud server.

Compared with the prior art, the invention has the beneficial effects that:

the wood package heat treatment temperature recorder is suitable for heat treatment monitoring in the wood quarantine process, has reasonable structure and high acquisition precision, is convenient for workers to know the working details in a heat treatment warehouse through multi-path data display, is beneficial to controlling the temperature control in the wood heat treatment process, well achieves the wood epidemic prevention treatment degree and simultaneously prevents the occurrence of wood cracking caused by excessive treatment; the recorder has low power consumption and is suitable for industrial popularization and application.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a heat treatment temperature recorder for wooden packages according to an embodiment of the present invention;

FIG. 2 is a schematic view of the installation of a wood core temperature probe of the present invention;

FIG. 3 is a schematic view of the structure of the probe mounting bracket of the present invention

FIG. 4 is a schematic structural view of a wet and dry bulb temperature acquisition device according to the present invention;

FIG. 5 is a schematic diagram of the distribution of multiple temperature acquisition units in a thermal processing chamber according to the present invention;

FIG. 6 is a logic block diagram of a thermal treatment temperature recorder for wood packaging according to the present invention;

FIG. 7 is a schematic pin connection diagram of a first single-chip microcomputer of the thermal processing temperature recorder for wooden packaging according to an embodiment of the present invention;

FIG. 8 is a schematic pin connection diagram of a second single-chip microcomputer of the thermal processing temperature recorder for wooden packaging according to the present invention in one embodiment;

FIG. 9 is a schematic view showing the connection of a wireless communication unit of the thermal treatment temperature recorder for wooden packaging according to the present invention, which employs a MAX485 interface chip;

FIG. 10 is a schematic view showing the connection of four temperature probes of the heat treatment temperature recorder for wooden packages according to the present invention in one embodiment;

FIG. 11 is a schematic view showing the connection of multiple display units of the thermal recorder for heat treatment of wooden packages according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of the connection of a transmission interface of a thermal recorder for wood packaging heat treatment according to an embodiment of the present invention;

FIG. 13 is a schematic view of the connection of a wood package heat treatment temperature recorder clock module according to an embodiment of the present invention;

FIG. 14 is a schematic view of the connection of a wooden package heat treatment temperature recorder buzzer in one embodiment of the invention;

FIG. 15 is a schematic diagram of the power supply module of the thermal treatment temperature recorder for wood packaging according to one embodiment of the present invention;

FIG. 16 is a schematic diagram of an application of the thermal process monitoring system of the present invention;

in the drawings;

1-a shell; 21-dry bulb temperature display screen; 22-wet bulb temperature display screen; 23-relative humidity display screen; 24-a wood core temperature display screen; 25-ambient temperature display screen; 26-standard time display screen; 27-average moisture content display screen; 28-processing time display screen; 3-an indicator light; 4-a wireless communication module; 41-key press; 42-push button;

510-a wood core temperature probe; 511-a fixed part; 512-reference wood; 513-hanging a rope;

520-a fixing sheet; 521-the ear; 522-fixing holes; 523-through holes; 524-ambient temperature probe;

530-dry bulb temperature probe; 531-wet bulb temperature probe; 532-gauze; 533-water tank;

6-Heat treatment library.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1 to 5, a temperature recorder for heat treatment of wooden packages comprises a shell 1, wherein a circuit board is arranged in the shell 1, and a processing unit, a switch control unit, a multi-path temperature acquisition unit, a multi-path display unit, a communication unit, a clock module, a warning module and a transmission interface which are in circuit connection with the processing unit are arranged on the circuit board; the multi-path temperature acquisition unit is connected with the multi-path probe device and displays data on the multi-path display unit in a one-to-one correspondence manner through the processing unit; the processing unit is also used for uploading the data acquired by the multi-path temperature acquisition unit to an upper computer through a communication unit; wherein the multi-channel probe at least comprises a wood core temperature probe device, an environment temperature probe device and a dry-wet bulb temperature acquisition device.

The heat treatment temperature recorder for the wooden package is mainly suitable for heat treatment monitoring in the quarantine process of the wooden package, is arranged outside a heat treatment warehouse, and is used for collecting and displaying the temperature of a wooden core, the ambient temperature and the temperature of a wet-dry bulb probe collected in the heat treatment process, and uploading the temperature to a server end for storage.

In one embodiment of the present invention, the wood core temperature probe device comprises a wood core temperature probe 510 and a fixing part 511, wherein the wood core temperature probe 510 is used for being inserted into a central placing hole (not shown) of a pre-drilled reference wood 512, the fixing part 511 is used for hermetically fixing the wood core temperature probe 510 inserted into the reference wood 512 (about 10cm × 10cm × 50cm) in the central placing hole of the reference wood 512, preferably, the fixing part 511 is a high temperature hot silica gel sealing block, the reference wood inserted into the wood core temperature probe is placed in a wood pile to be treated in a heat treatment warehouse, and further, for facilitating inspection, the wood core temperature probe device further comprises a copper wire hanging rope 513 for being fixed on the reference wood 512 and facilitating taking out of the reference wood pile.

The ambient temperature probe device comprises an ambient temperature probe 524, which is used for being arranged in the heat treatment warehouse 6, preferably on the inner wall and at a distance of 1.5 meters from the ground, relatively far away from the wet and dry bulb temperature collecting device (for example, diagonally arranged in the warehouse), and on the bisector of the wall corner, as shown in the top view layout of the heat treatment warehouse in fig. 5; the environment temperature probe device comprises a probe mounting bracket, the probe mounting bracket is a double-lug fixing bracket, the double-lug fixing bracket comprises a fixing sheet 520 and lugs 521 which are arranged at two opposite ends of the fixing sheet, a fixing hole 522 is arranged in the middle of the fixing sheet 520 and is used for being fixed on probe fixing objects such as an inner wall of a heat treatment warehouse, and through holes 523 are arranged at corresponding positions in the middle of the two lugs 521 and are used for placing environment temperature probes 524; the probe mounting bracket has a symmetrical structure, good stability, light weight and low cost, and is convenient for placing and taking the environmental temperature probe 524; the fixing piece 520 and the two ear portions 521 are integrally formed, and preferably made of stainless steel.

The dry-wet bulb temperature acquisition device comprises a wet bulb temperature probe 531, a dry bulb temperature probe 530 and a water tank 533; the water tank 533 is a rectangular box body, the top of the box body is provided with a hole, and the box body is filled with water with the depth of 5-10 cm; after the wet bulb temperature probe 531 is used for wrapping 2-3 layers of gauze 532, the tail end of the gauze 532 is immersed into the water tank 533 from a hole at the top end of the box body of the water tank 533, the distance between the wet bulb temperature probe 531 and the water surface in the water tank 533 is 5-10cm, and the gauze 532 outside the wet bulb temperature probe 531 is kept in a wet state; in this embodiment, preferably, the wet bulb temperature probe 531 and the dry bulb temperature probe 530 are disposed 1-1.5 meters away from the warehouse door and the ground of the heat treatment warehouse 6 and close to the warehouse wall, and the distance between the wet bulb temperature probe 530 and the wet bulb temperature probe 531 is 8-10cm horizontally. Furthermore, the dry-wet bulb temperature acquisition device also comprises the probe mounting bracket, and the bracket at least comprises 2 brackets which are arranged at proper positions (not marked in the figure) in the heat treatment warehouse and used for correspondingly fixing the dry-wet bulb temperature probe and the wet-wet bulb temperature probe respectively.

In the working process of the dry and wet ball temperature probes, the heat is absorbed when water is evaporated, so that the temperature of a layer of air close to gauze is reduced, the ambient air flows to the gauze to transfer heat along with the temperature difference established with main air (ambient air flow), when the temperature is reduced to a certain degree, the heat transferred into the gauze is exactly equal to the heat required by water evaporation, the temperature is kept unchanged, the temperature is the wet ball temperature, the relative humidity of the air is smaller, the temperature measured by the wet ball temperature probe is lower than that measured by the dry ball temperature probe, and if the air is saturated, the temperature of the wet ball temperature probe is the same as that of the dry ball temperature probe, so that the difference between the dry ball temperature and the wet ball temperature has a certain functional relation with the ambient relative humidity; according to the principle, the processing unit is used for converting the temperature values acquired by the dry bulb temperature probe and the wet bulb temperature probe into the relative humidity value of the environment of the heat treatment library through calculation and processing.

In the invention, as a preferred embodiment, the wood core temperature probe, the environment temperature probe and the dry and wet bulb temperature probes can adopt DS18b20 digital temperature sensors to output digital signals, adopt silica gel high-temperature wires and stainless steel shells, have the temperature measuring range of-40 ℃ to 125 ℃ and the precision of 0.5 ℃, and have the characteristics of small volume, low hardware cost, strong anti-interference capability and high precision; DS18b20 digital temperature sensor wiring is convenient, can be applied to multiple occasion after the encapsulation, like pipeline formula, screw thread formula, magnet adsorption formula, stainless steel encapsulated type etc. are applicable to various narrow and small space equipment digit temperature measurement and control field, wear-resisting resistant bumping.

The multi-path display unit comprises eight independent display screens (21, 22, 23, 24, 25, 26, 27 and 28) and a plurality of indicator lamps, wherein the eight independent display screens are a dry-bulb temperature display screen 21, a wet-bulb temperature display screen 22, a relative humidity display screen 23, a wood core temperature display screen 24, an environment temperature display screen 25, an average moisture content display screen 27, a standard time display screen 26 and a processing time display screen 28; the processing unit acquires temperature monitoring data of the multiple paths of temperature acquisition units, processes the temperature monitoring data and correspondingly outputs the temperature monitoring data to the eight independent display screens; the standard reaching time and the processing time of the heat treatment are generated by the clock module and then output to the display screen for display through the processing unit. The indicator lights 3 are used for displaying the running state of the whole machine, in the embodiment, 7 indicator lights 3 are arranged and used for indicating the starting state, the running state, the temperature state and the like.

The switch control unit comprises two switch mode keys (41, 42), and the two keys (41, 42) are electrically connected with the processing unit and are respectively used for power supply main switch control and heat treatment process parameter selection switch control.

The warning module comprises a buzzer (not marked in the figure), is electrically connected with the processing unit and is used for indicating the heat treatment running state by vibration or sound in the heat treatment running process.

The communication unit comprises a wireless communication module 4 which is connected with the processing unit through an interface access circuit board, receives various monitoring data (including probe acquisition temperature, calculated relative humidity, average moisture content, running time and the like) of the processing unit and wirelessly transmits the monitoring data to an upper computer end; preferably, the wireless communication module adopts a 433MHz communication module, and the communication distance is 300-1000 meters. Correspondingly, the invention also comprises a wireless serial port module which is connected to the upper computer end through a USB interface and used for receiving the monitoring data uploaded by the wireless communication module 4 to the upper computer.

When the recorder works, the recorder is arranged on the outer wall of a heat treatment warehouse, and the working state is started after the recorder is electrified; the four temperature probes are arranged in the heat treatment warehouse in the arrangement mode; closing a door of a heat treatment warehouse, ensuring tight sealing, starting temperature rise and heating, starting a circulating fan in the warehouse at the same time, keeping the indoor temperature and humidity distributed uniformly, and maintaining the internal environment close to saturated air humidity as early as possible in the heating and temperature rise stage in order to improve the heat transmittance of the wood and prevent the wood from cracking;

according to different tree species and wood water content, different heating rates and treatment temperatures are adopted to achieve the purpose of heat treatment harm removal, and the dried wood is guaranteed not to deform or crack. In the temperature rise process, each probe collects temperature data in real time and transmits the temperature data to the processing unit and uploads the temperature data to the upper computer, and the upper computer records the temperature of each probe in the heat treatment warehouse in real time through a software program and uploads the temperature data to a remote end (cloud server end) for storage;

the control flow of the processing unit comprises the following steps: when the dry and wet bulb temperature probes in the warehouse reach the set temperature and maintain the temperature and the humidity for reaching the heating time, the effective starting time of the heat treatment is obtained; in general, when the temperature of the dry bulb temperature probe with the lowest temperature reaches 75 ℃ and the relative humidity reaches more than or equal to 81.00 percent (namely the temperature difference of a dry bulb and a wet bulb is less than or equal to 5 ℃), calculating the effective processing time, wherein the effective processing time is more than or equal to 7 hours and is determined according to the time condition;

and the processing unit stops heating and closes the circulating fan when the water content of the wood falls below 20% through the temperature of each probe according to the internal stored calculation logic.

The processing unit records the heat treatment date, the temperature in the warehouse, the effective heat treatment time, the processing time, the heat treatment ending time and the like, and reports the data to the server side for the quarantine department to check.

In one embodiment of the present invention, each unit on the circuit board includes:

as shown in fig. 6, the processing unit includes a first MCU2 and a second MCU2, and referring to fig. 7, the first MCU is preferably an STC15W4K56S4 MCU in a L QFP44 package form, and has 44 pins, except that pin 14 is connected to a power supply and pin 16 is connected to ground, all the pins are I/O (input/OUTPUT) ports in default, and the definition and connection signals of the pins are as shown in fig. 7, which should be noted that in the present embodiment, details of the conventional resistor RN (including RN1-RN6) or the conventional circuit interface (such as J1, J3, J5, J9-J13) are omitted during the inter-device connection.

The second single-chip microcomputer MCU2 is used as a main control temperature measurement chip, the embodiment adopts a L QFP44 packaged STC12C5A16S2 single-chip microcomputer which is ultra-strong in interference resistance, ultra-strong in static resistance and high in speed, 1 clock/machine period can use a low-frequency crystal oscillator, EMI is greatly reduced, and more input/output ports are provided, pins of the chip are defined and connected signals as shown in figure 8, the second single-chip microcomputer MCU2 receives temperature data collected by temperature probes, transceiving pins (5 and 6) of the second single-chip microcomputer MCU are in circuit connection with transceiving pins (4 and 5) of a first single-chip microcomputer MCU, the collected temperature data are transmitted to the first single-chip microcomputer MCU, pins 18 and 19 of the first single-chip microcomputer MCU are in communication with an upper computer through a wireless communication module, the data are transmitted to an office upper computer and then are uploaded to a cloud storage (cloud server end) through a broadband network, pins 30-37 of the first single-chip microcomputer MCU determine local numbers through a single-knife switch DIP-8, and can realize no-conflict communication in the same wireless network, the invention is used as a cloud processing unit of the second single-chip microcomputer MCU, and is added to a multi-computer communication auxiliary communication unit.

As shown in fig. 9, the wireless communication module is connected to the circuit board through the MAX485 interface chip, and is connected to the first single chip, the MAX485 interface chip is used as a low power consumption transceiver, the slew rate of the driver is not limited, and the highest transmission rate of 2.5Mbps can be realized; the RO end and the DI end are respectively the output of the receiver and the input end of the driver, and only need to be respectively connected with RXD and TXD (18 and 19 pins) of the first singlechip when being connected with the first singlechip; the/RE end and the DE end are respectively an enabling end for receiving and sending, and when the/RE end is logic 0, the device is in a receiving state; when DE is logic 1, the device is in a sending state, and because MAX485 works in a half-duplex state, only one pin of the first singlechip is needed to control the two pins; the A end and the B end are differential signal ends for receiving and sending respectively, and when the level of the pin A is higher than that of the pin B, the data sent is represented as 1; when the level of a is lower than that of B terminal, it represents that the transmitted data is 0. Meanwhile, matching resistance is added between the A terminal and the B terminal, and the resistance of 120 omega can be generally selected.

As shown in fig. 10 and referring to fig. 8, the wood core temperature probe, the ambient temperature probe, and the dry and wet bulb temperature probes (DS18B20_ D1, DS18B20_ D2, DS18B20_ D3, DS18B20_ D4) are connected to the circuit board through the interfaces J2, J4, J6, and J7, and then connected to the second single chip through a 74F2458 bi-directional tri-state bus buffer, and the collected data (shown as DS18B20_ a1, DS18B20_ a2, DS18B20_ A3, and DS18B20_ a4) are input to the second single chip MCU2 (connected by its 18-21 pins).

As shown in fig. 11 and referring to fig. 8, the second single chip microcomputer is correspondingly connected with 8 independent display screens and a plurality of indicator lamps through two HDADER5x2 row seats (JP1, JP2) and a CON5 interface (J1), wherein pins 25 to 33 of the second single chip microcomputer output logic control signals to the 8 independent display screens through HDADER5x2 row seats JP1, relevant data are displayed through the display screens, and pins 1, 2, 9, 10, 11 and 12 of the second single chip microcomputer are connected with a plurality of led indicator lamps and switch mode keys through HDADER5x2 row seats JP2 to perform corresponding state display and signal control.

As shown in fig. 12 and referring to fig. 8, the transmission interface adopts a USB serial port, and is connected to the first single chip microcomputer through a switching chip CH340T of a USB bus, so as to transmit data to the outside.

As shown in fig. 13-15 and referring to fig. 8, the clock module is connected to the second single chip microcomputer by using a low power consumption DS1302 clock chip to provide time information, the buzzer BEEP is connected to the second single chip microcomputer to receive the signal of the second single chip microcomputer to generate vibration or sound for warning, the whole machine of the invention supplies power by using a power module, the power module forms a power management monolithic integrated circuit by using an L M2595 switching power regulator, and the whole machine is powered by connecting an external power supply, so that the whole machine has good linearity and load regulation characteristics.

In a second aspect, the invention further provides a heat treatment monitoring system comprising the wood package heat treatment temperature recorder, as shown in fig. 16, the heat treatment monitoring system further comprises an upper computer 7 and a cloud server 8, the wood package heat treatment temperature recorder housing 1 is arranged on an outer wall of the heat treatment warehouse 6, and the wood package heat treatment temperature recorder is sequentially in communication connection with the upper computer 7 and the cloud server 8. Monitoring data such as temperature data and processing time information recorded by the wooden package heat treatment temperature recorder are wirelessly transmitted to an upper computer of a quarantine office, so that workers can conveniently monitor the heat treatment working process; and the upper computer stores the monitoring data to a cloud server for storage through a network.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A temperature recorder for heat treatment of wooden packages is characterized by comprising a shell, wherein a circuit board is arranged in the shell, and a processing unit, a switch control unit, a multi-path temperature acquisition unit, a multi-path display unit, a communication unit, a clock module, a warning module and a transmission interface which are in circuit connection with the processing unit are arranged on the circuit board; the multi-path temperature acquisition unit is connected with the multi-path probe device and displays data on the multi-path display unit in a one-to-one correspondence manner through the processing unit; the processing unit is also used for uploading the data acquired by the multi-path temperature acquisition unit to an upper computer through a communication unit; wherein the multi-channel probe at least comprises a wood core temperature probe device, an environment temperature probe device and a dry-wet bulb temperature acquisition device.

2. The wood package heat treatment thermography of claim 1 wherein the wood core temperature probe means comprises a wood core temperature probe and a fixing portion; the wood core temperature probe is used for being inserted into the reference wood placing hole, and the fixing part is used for hermetically fixing the wood core temperature probe inserted into the reference wood in the reference wood placing hole.

3. The temperature recorder for heat treatment of wood packages as claimed in claim 2, wherein the ambient temperature probe device comprises an ambient temperature probe and a probe mounting bracket, the probe mounting bracket is a double-lug fixing bracket comprising a fixing plate and lugs oppositely arranged at two ends of the fixing plate, a fixing hole is arranged in the middle of the fixing plate, and a through hole is arranged at a corresponding position in the middle of the two lugs.

4. The wood package heat treatment thermography of claim 3 wherein the dry and wet bulb temperature acquisition devices comprise wet and dry bulb temperature probes and a water tank; wherein the water tank is a rectangular box body, and the top of the box body is provided with a hole.

5. The wooden package heat treatment temperature recorder according to claim 4, wherein the multi-path display unit comprises eight independent display screens and indicator lamps, and the eight independent display screens are a dry-bulb temperature display screen, a wet-bulb temperature display screen, a relative humidity display screen, a wood core temperature display screen, an ambient temperature display screen, an average moisture content display screen, a standard reaching time display screen and a processing time display screen.

6. The wood package heat treatment temperature recorder of claim 5, wherein the communication unit comprises a wireless communication module connected to the processing unit via an interface access circuit board for receiving the monitoring data of the processing unit and transmitting the data to an upper computer.

7. The wood package heat treatment temperature recorder of claim 6, wherein the processing unit comprises a first single chip microcomputer and a second single chip microcomputer which are connected through a circuit; the second single chip microcomputer is used as a main control chip to receive signals transmitted by the switch control unit, the multi-path temperature acquisition unit and the clock module, outputs signals to the multi-path display unit and the warning module to display data and/or states, and transmits data to the upper computer through the first single chip microcomputer.

8. A heat treatment monitoring system comprising a log of the temperature of a heat treatment of a wood package according to any of claims 1 to 7.